"Yes, Sam’s a real selfish asshole is basically what it boils down to. Um… (laughs) It is true. I mean, Sam seems to be a little preoccupied and, I don’t know, maybe it’s a ‘little brother’ thing like, maybe he’s like, “Hey, you’re my big brother. You can figure it out yourself.” Uh, but you know […] to the way Dean thinks is, “I’m the big brother. And I gotta always look after my little brother and protect him and keep him from harm, and that’s kind of been his crede for, you know, as long as he can remember - so, um, I think that they both kind of come at it from different angles. Sam is, he’s more willing to, kind of, allow for things to just happen the way they happen. And, you know, he is… It’s a Sam-centric world in his mind. And I think it always has been, and it’s also been more of a Sam-centric show for a long time, and it was originally based around that, and Dean was kind of the guy who was the protector and there to keep him going along and make sure that nothing happens to him. And it’s always kind of been that way, and I’m not surprised that it’s turning out the way it’s turning. It seems to still be around the same vein as what we’ve been doing for the past nine years."
Jensen Ackles, Winchester Bros interview [x]
Question: Dean has made a lot of really big gestures to save Sam in the past. He’s brought him back from the dead in season, and he let Gadreel posesss him in this season. But Sam wasn’t able to save Dean from hell. Sam wasn’t able to get Dean out of Purgatory. Do you think it’s time for Sam to save Dean from something big like that? Like maybe the mark of Cain effects? And do you think that might give Sam perspective on why Dean does what he does?