Does the casual gamer, you know, the people you're trying to sell games to, actually give a shit who or what they're supposed to be as long as it has stunning graphics, great action, and awesome gameplay? I'm sure all the kids would love to bio-bomb earth into oblivion and shoot down orphan-ships for the right x-box achievements.
Besides, being baaad in games is fun. Like those moments in the GTA's when you got a 4-5 star wanted level and find yourself in the middle of the road desperately unloading clip after clip into police and bystanders indiscriminately trying earn a few extra seconds to escape to safety. You're definitely not a hero, but it's amazingly intense and fun.
In Starsiege's Cybrid campaign you kill all the good guys and bring humanity to extinction... and suck people's brains out. It's still totally awesome.
Also, force choke shouldn't be evil. It totally brings joy into people's lives. Seriously though, lightninging at people isn't nice. Get over it.
Ha, yeah, as nice as I am and as hard a time I have being mean in games, playing as the cybrids was amazingly fun.