As for SM... maybe perhaps you're not quite looking close enough?
As far as I know, at least -one- 'evil' person isn't presented as
fully evil; my information may be wrong on that.

Eh? Who?

	Hmm, Well there was Ail and Ann, Fiore from the R movie was possesed 
by an evil flower, The 4 black moon sisters reformed... Still if you're 
looking for a time that someone who got wasted turned out to be a non evil 
person driven to do something horible, I'm not sure.