@marlin @yockeypuck i have a quest kind of like this in my d&d campaign actually. half orc girl wants to assassinate the party, potential that they end up befriending her. if they do, whenever she sees orcs she is affected by the evil orc magic and starts viciously attacking the party. if they don't kill her and leave her somewhere, then whoever they left her with has a chance to die too if more orcs ever come around.
my current party almost got someone killed because they left her somewhere. she'll even tell the party she's better of being killed so she doesn't have to worry about hurting people, but they can convince her otherwise and see where that leads.
i find this wholly more interesting than "that orc you just killed had a family!" instead, it's that orc you helped out is still an orc... still a manifestation of pure evil and twisted morals. struggle as you might, that will never change until you take it out at the source and eradicate all of them.
of course, if people want to use orcs in a different way in their own creations, i've got no problem with that. it's when they twist what already exists that is really shitty. i'd take a thousand orc massage games over changing orcs to no longer be entirely evil.