Cooperation with Evil: Why the Distinctions Matter

The Servant and the Ladder

Consider the old moral case condemned by Blessed Innocent XI (1676–1689). A servant helps his master climb through a window to commit a grave sexual crime, perhaps by holding the ladder, opening the door, or otherwise assisting him. Could the servant excuse himself by saying he feared being treated badly or losing his position? The answer was no.

The case is old, but the principle is not. One may not actively facilitate grave evil simply because resistance is costly. Pope Innocent XI condemned this “servant and the ladder” proposition in 1679 (DS 2151; cf. DS 2166) because it treated active assistance in grave evil as excusable on the basis of relatively minor pressure or inconvenience. The point is that one may not facilitate serious injustice simply because resistance is costly.

In a world of abortion pills, euthanasia debates, cloning, hospital rationing, and endless moral gray zones, the question of cooperation with evil is anything but abstract. It is one of the most practical moral issues ordinary Christians face. Anyone living “in the world” will eventually confront it: in medicine, politics, education, business, family life, and even taxation. The issue is unavoidable because our actions often become occasions, opportunities, or instruments for the actions of others.

At its most basic, cooperation with evil means doing something that in some way helps another person do wrong. However, Catholic Moral Theology has always insisted that not all cooperation is the same. These traditional distinctions matter because they help us avoid two opposite errors: calling every contact with evil a sin, or excusing serious participation in evil under the cover of “complexity.”

Necessary Distinctions

The first and most important distinction is between formal and material cooperation. Formal cooperation means that I share in the evil intention of the wrongdoer. I do not simply assist externally; I inwardly consent to the evil being done. Since I share the bad will, formal cooperation is always morally illicit. A doctor who agrees with abortion and helps procure one, or an administrator who arranges immoral procedures because he wants them to happen, is formally cooperating in evil. This is never justified.

Material cooperation, by contrast, means that I do not share the evil intention, but my action still helps make the evil act possible. This is more complicated. Material cooperation can sometimes be tolerated, but only after careful moral analysis.

Here another distinction becomes crucial: immediate and mediate cooperation. Immediate material cooperation means that my act enters directly into the performance of the evil deed itself. Even if I do not share the intention, I am participating in the act’s execution. Due to its closeness, immediate material cooperation in grave evil—especially attacks on innocent human life—is morally illicit. Mediate material cooperation is different. Here my act does not perform the evil deed itself, but supplies conditions, tools, structures, or support that make it possible.

Then comes the distinction between proximate and remote cooperation. These terms refer to how close the cooperation is to the evil act, whether in material connection, causality, or practical effect. Proximate cooperation is close and tightly connected. Remote cooperation is more distant.

Immediate material cooperation is always proximate, while mediate material cooperation can be either proximate or remote. The closer the cooperation is to a grave evil, the harder it is to justify. The more remote it is, the more possible it may be to tolerate for proportionate reasons—though even then one must consider scandal, witness, and the corrupting effect on one’s own soul.

A further distinction is between active and passive cooperation. Active cooperation means doing something that helps the evil occur. Passive cooperation means failing to prevent or denounce evil when one had a real duty to do so. Passive cooperation can also be formal or material, proximate or remote. If a person keeps silent or does nothing because he inwardly approves the evil, that too can be formal cooperation. Even material passive cooperation can be sinful if a real obligation to resist evil has been neglected.

In short, formal cooperation is always wrong. Immediate material cooperation in grave evil is also wrong. Mediate material cooperation requires careful judgment about proximity, scandal, necessity, and proportionate reason. The Christian is called not merely to avoid guilt, but to bear witness to the good.

Traditional Catholic moral theology, drawing on principles found in St. Thomas Aquinas and developed more explicitly in later moral theology, distinguishes between formal and material cooperation, and then between immediate and mediate, proximate and remote, and active and passive forms of cooperation. The Thomistic roots of this doctrine appear in his treatment of the human act and in his account of responsibility for injustice through command, counsel, consent, participation, or failure to resist when one has a duty to do so (ST II-II, q. 62, a. 7).

These distinctions are not mere moral bookkeeping. They rest upon the deeper Catholic understanding of the human act. A moral act is judged according to its object, intention, and circumstances (ST I-II, q. 18, esp. aa. 2–4). The object is what one is actually choosing to do. The intention is the end one seeks. The circumstances include the setting, pressures, and consequences. All three matter, but not in the same way. A good intention cannot make an intrinsically evil act good. As the saying goes, “The end does not justify the means,” and the “end” is the “intention.” Circumstances can increase or lessen responsibility, but they cannot make an act evil by its object into something morally good. That is why appeals to duress, social pressure, career concerns, or “lesser evil” arguments cannot automatically excuse cooperation.

John Paul II and the Sacredness of Human Life

This is also why St. John Paul II, in Evangelium Vitae, spoke so strongly about cooperation in attacks on human life. He insisted that Christians are under a grave obligation not to cooperate formally in practices contrary to God’s law (Evangelium Vitae, 73). He also defended the right to conscientious objection, especially for physicians, nurses, administrators, and healthcare workers who are pressured to participate in abortion, euthanasia, or other acts against life (Evangelium Vitae, 74). The pope understood that these situations often involve sacrifice: loss of prestige, stalled careers, financial hardship, or institutional pressure. He nonetheless also understood that refusing to cooperate in evil is not only a duty but a witness to human dignity.

Traditional and modern cases show why this matters. A nurse assisting directly in an abortion, a counselor referring for abortion, or a hospital administrator organizing sterilizations are not simply “working within a system.” Depending on the act, they may be formally or immediately materially cooperating in grave evil. Catholic hospitals in the United States learned this painfully in debates over sterilization. Similar questions arose in counseling around condoms and HIV, in supervised drug-injection rooms, in German Church counseling centers that issued certificates later used for abortion, and in politics when legislators support laws that maintain or expand abortion.

Not every case is identical, but every case requires the same careful moral reasoning. What exactly is being chosen? What intention is being shared, if any? How close is the cooperation? What scandal will result? What does love of neighbor, love of truth, and fidelity to God require?

That last point is essential. Cooperation with evil is not only about protecting one’s own moral purity. It is about love of neighbor, love of self rightly understood, and the mission of the Church. Our actions teach. They strengthen or weaken others. They either clarify the good or blur it.

Scripture is full of warnings about scandal. Eleazar would rather die than mislead the young (2 Mac. 6:18–31). Our Lord warns against causing little ones to stumble (Mt. 18:6–7; Lk. 17:1–2), and in the Sermon on the Mount He teaches that greatness belongs to the one who not only keeps the commandments but teaches them (Mt. 5:19). St. Paul refuses even morally neutral actions when they might draw others into sin (1 Cor. 8:10–13; 10:25–29; Rom. 14:13–21).

The Catechism teaches that scandal is behavior that leads another to do evil, and that it is grave when one deliberately leads another into grave sin (CCC 2284–2287). St. Thomas says much the same, defining scandal as something wrongly said or done that becomes an occasion of another’s spiritual ruin (ST II-II, q. 43, a. 1). We are, in fact, our brother’s keeper (cf. Gen. 4:9).

At the same time, our choices shape who we become. Catholic Moral Theology has always insisted that the most important effect of a human act is not merely what it produces outside us, but what it does in us. Our Lord Himself teaches that what defiles a man comes from within, for “out of the heart come evil thoughts, murder, adultery, fornication, theft, false witness, slander” (Mt. 15:18–20; cf. Mk. 7:20–23). In other words, evil is not merely procedural or external. It reveals and deforms the person from within.

This is why the issue is not merely moralistic, but ontological: we become, in part, what we repeatedly do. Freedom is not mere indifference among options, but the gradual formation of the person in truth and goodness. That is why the Christian life cannot be reduced to some vague “fundamental option,” as though concrete choices did not shape the soul.

St. John Paul II rejects that error in Veritatis Splendor, warning against any theory that would detach a person’s deepest moral orientation from the deliberate choices by which he actually lives (Veritatis Splendor, 65–70). If I repeatedly cooperate with evil, even materially, I risk becoming the sort of person who tolerates, rationalizes, and finally accepts it. Discernment in these cases therefore demands more than casuistry. It requires a strong Christian identity, resistance to occasions of sin, and sometimes the willingness to sacrifice advancement, comfort, reputation, or institutional success in order to remain faithful.

The point, then, is not that every contact with evil makes one guilty of grave sin. Nor is the point that complex situations excuse almost anything. The point is that moral clarity matters. Formal cooperation is always wrong. Immediate material cooperation in grave evil is also wrong. Mediate material cooperation must be judged carefully according to proximity, necessity, scandal, and proportionate reason.

And throughout all of it, one must remember that the Christian is called not merely to avoid guilt, but to bear witness to the good. That is why the old distinctions remain so valuable. They are not relics of a rigid past. They are tools for living faithfully in a compromised world. A recent public example shows just how demanding those distinctions can become.

Editor’s Note: This article is part of a CE original series on Bioethics & Culture by Fr. Francesco Giordano, tackling the challenging moral issues of our day.

Photo by Kanhaiya Sharma on Unsplash