I believe they feel that their ideology is the ultimate force for positive change, and they become so lost in it that they are willing to do objectively wrong t

I believe they feel that their ideology is the ultimate force for positive change, and they become so lost in it that they are willing to do objectively wrong things under the rationalization that they're nuetralizing a threat to the idealogy. Again, that's just what I think makes sense and personally believe. It's certainly possible I'm incorrect.