There are several decades of sociological research on similar topic.s If you are interested, the following book is a good introduction with extensive references: https://www.theauthoritarians.org/options-for-getting-the-bo...

One of the most startling relevations (to me) was that you don't need to be a "bad" person in order to do things one could consider immoral. All it takes is an immoral leader who is able to exploit certain personality traits and convictions that can be found in many of us.

Even though this text was written in 2005, it provides an explanatory framework for things that are more relevant today than ever. It's worth a read.