Did. Or, he's not above it, anyway. Sabretooth, I THINK that it was stated (Or hinted at.)that he raped Silver Fox, one of Wolverine's old girlfriends. Crossbones had, at the very least, physically assaulted Diamondback and the Red Skull's daughter. I think that I read that he raped them, but nothing was outright stated in the story. Norman Osborn (Seemingly.) took advantage of Gwen Stacy and Harry's girlfriend Lily (Ugh!), but that wasn't outright rape. The Purple Man is really the only definite one that comes to mind, but the other ones probably did too. I can see The Owl (Depending on how crazy he's being written. He's seemed to have gotten a lot crazier over the years.) maybe doing it, but to my knowledge, he's never done it. I think that The Ultimate Universe might have a decent amount of that. But aside from The Purple Man, no!
Also, is Dr. Light being a rapist even part of the 52 cannon? Heck, does Dr. Light even EXIST anymore?
"Norman Osborn (Seemingly.) took advantage of Gwen Stacy and Harry's girlfriend Lily (Ugh!), but that wasn't outright rape."
It wasn't any kind of rape, outright or otherwise. And Norman Osborn didn't take advantage of Gwen Stacy. He slept with her, pure and simple. They were two consenting adults who were single at the time and made the decision to have sex together. Until Norman tried to take custody of their children, Gwen didn't even seem to regret that decision.
In Lily's case, Norman was definitely manipulating her and taking advantage of her, but there was never any indication that their sexual relations were anything less than consensual. I guess you could argue that Lily was unable to give consent because she was insane from the Goblin Serum, but you could say the same thing about Norman too.