I know it's just an AI, but you can't help but feel sorry for Joe Blow NPC wandering about Fable II's world. The poor fool never did anything to you, right?
Then again, it's also tempting to prance about on the side of good, since all you need to do is hold a few old ladies' hands and walk them across the street, along with pick out a nice enough outfit, and everyone in the entire world wants to marry you at first sight. The fact that I no longer have to do any real work to make people respect me enough to give me like a 30% discount at any shop is more than enough motivation for me not to go around kicking people in the face.
Plus, the one time I actually made an evil character, the fool looked like a troll on a bad day. I just got sick of LOOKING at the guy. If being evil didn't make you such a hideous SOB, maybe I'd bother next time.