Hm...
There is a delightfully long list of anti-heroes who do dickish things because they are dicks, but I think I have the perfect anti-hero.
Link. Specifically, the Majora's Mask version. You wanna talk anti-hero? He fixes all of the problems, then undoes them every time that he rewinds time. But when he saves the day, unless you go back and fix every single problem for every single person before stopping the moon (which isn't possible), you leave with the souls of two local heroes tucked away in your pocket, and probably close to a hundred people utterly miserable, stolen from, incapable of marrying, and that ignores all of the problems brought on by the Skullkid in the temples which may or may not have been fixed (and if they weren't fixed immediately, many more people died).
xP That's a real anti-hero, in my opinion. He left the entire world in complete chaos after saving it, and did it with all of them cheering him on and patting him on the back in the process. No one thought he was a dick, especially not the player.