I don't have it front of me here, but he basically says something like "The Doctor isn't a hero. He's just a guy. He didn't set out from Gallifrey to be hero. He just wanted to bum around a bit and see the universe. If something happens and he is called upon to be heroic, he will rise to the occassion, but he didn't set out to be one." Apologies to Moffat if I am misrepresenting him here.
I don't know whether I agree either, but I'm not an expert by any means. I think that the very nature of Doctor Who and regeneration means that every couple of years you get a new Doctor with a new set of values and a new idea of what is acceptable. It is pretty hard to make a grand sweeping statement like that about how the Doctor sees himself.
Not saying that he should go though.