> In reality most individuals are good people.

I'd agree if we are talking about personal interactions. Few hundreds people that we personally know and interact with is the scale we are wired for by evolution, isn't it?

What civilization enabled and continuously rely on, however, is the type of deindividualization of actions and bucketing of people, which, in turn, enables pretty horrible things at scale (from the weapons of mass destruction to objectively psychopathic profit-maximizing corporations). One can even say that not facing the consequences of one's actions is a feature and not a bug of the system.