I'm the exact way. I made an evil character named 'Keyser Soze' (Unusual Suspects) and I couldn't bring myself to be rude or do evil deeds. I'm a pathetic Keyser Soze. The only thing I did bad on that game was blow up Megaton and I still feel bad about that.
Ah, don't worry. That just means you guys are thankfully better human beings and less anti-social than me.

The only time I felt bad about being evil was when I enslaved Bumble. I think it was the adorable way she called me "Vault Dweller".
It cut right through my black heart.