With or without religion, you would have good people doing good things and evil people doing evil things. But for good people to do evil things, that takes religion.

When Good People Skip the Hard Thinking

We often think morality works like a simple on-off switch—people are either good or bad. But Weinberg is pointing at something more unsettling: the gap between a person's genuine decency and their capacity to harm others. The twist is that belief systems, especially rigid ones, can actually bridge that gap. A good person with a loving family and strong values might still participate in cruelty if they believe they're serving a higher cause. History is full of ordinary, well-meaning people who convinced themselves that segregation was Christian duty, or that their group's survival justified violence, or that obedience to authority was moral necessity.

This doesn't mean belief itself is the culprit. It's specifically the combination of unquestioned authority and us-versus-them thinking that lets good people rationalize bad actions. We see this play out in workplaces, social movements, and online communities too—anywhere people adopt a framework that tells them: your group is righteous, outsiders don't count, obedience is virtue. The uncomfortable lesson isn't that we should distrust belief. It's that we should stay alert to how belief can let us skip the hard work of actually thinking through what we're doing.