I prefer politicians to do what is logical and what is right, even if the citizens hate it so much they will be beheaded in a revolution. One of the number one things I lament the lack of is leaders with actual principles.
When someone commits an evil act, they did it because they think it is justified somehow. Most bad people do not see themselves as bad at the moment of the act, only as someone who had a reason to do it and the reason was much more important.