In the grand cosmic scheme of things, this Loki isn't exactly a villain either, as I understand it. This Loki has been shown expressing regret for his actions, as well as genuine love for Thor and his adopted family. He's just... well, he's Loki, he can't change his nature.

But then, I'm not too familiar with Marvel's Thor. I've just been hearing more and more great things that make me want to check it out.