I want to say more on this later but this gets to the heart of the psychology of these criminals.
Russian dissident Alexander Solzhenitsyn wrote the opening quote in the aforementioned bestseller. He claims, "To do evil, a human being must first of all believe that what he's doing is good. . . . Ideology is the social theory which helps to make his acts seem good instead of bad in his own and others' eyes, so that he won't hear reproaches and curses but will receive praise and honors."