Evil is a word some say that exits I’m not sure I agree. There’s much more to it. Evil is just an ego an inflation of the self, addicting obsessive vice, an unbalanced parallel.
Being told that it's wrong or hearing the word "No" is not the sounds that agree with an enlarged ego. Thier ideas are always right and will want full submission, because they hold the knowledge of all that is conditioned.
An example of some villans not so long ago, did not think they were evil that is something you should know. Hitler thought he was noble and Stalin was a Savior there crimes were for the good was the excuse for thier behavior.
So ask yourself one question put your pride on the shelf. When you do something good do you do it for "the self'? I can name some names right now, but I will not go there. I will on another time when I have more time to spare.