So, what, it's a case of 'Oh hey, you guys weren't around when I made up for this bad shit I did, so now I'll throw myself off a cliff despite Pepper and whoever else knowing I've already done a good deed'?
Screw that. And if Marvel do play it like that, a scene with Tony being all 'OHAIUGUYZ, MSORREEFORTHEWARANDTHECLONE' and Steve and Thor just accept it, then they're bigger idiots than I think they are.