One of the biggest life lessons I learned was from watching the show Breaking Bad. I think we all have a natural disgust / aversion to evil people. While it’s important as a social function for protecting communities from bad actors, it harms our ability to understand evil.

That’s the key. Understanding evil and how good people descend into it is the best way to protect ourselves from walking down that path. It starts with recognizing that bad circumstances and unaddressed feelings of resentment and perhaps a sense of entitlement all contribute to our ability to justify and rationalize our own actions internally.

Hitler couldn’t have carried out the Holocaust without the help of millions of German citizens who rationalized in exactly this way.