Well, I can't fault you for being wrong.
No, no, I can, I can. You're so wrong. Take MGS3, for example. Snake's a badass, sure, but I think it'd be much more fun to play as Volgin, or Ocelot, or any one of the Cobras, cruelly manipulating and being **** without some greater good in mind. I don't want my character to be bland, capable badass Snake, I want my character to be able to control hornets and tanks with his mind, goddamnit. But that's only half of it, because if my character is the villain then Snake would try to stop me. What's so great about saving the world for the hundredth time when I can destroy it? Why be the Vault Dweller when you can be the Master? It's a roleplaying goldmine. It's something nobody's really tried. It's something that they should try.