I think you are misunderstanding me a bit when I said he shrugged off Dan's death. It was made plainly obvious he understands it's all his fault. However, he acted as if it couldn't be helped because, according to his brainwashing by his old man, he is a powerless nobody and thus no matter what he does or doesn't do, it will have no effect in any way. That means that he believed (hopefully it really is an imperfect now) that he can't succeed at anything and thus if he fails or causes other disasters, it's just natural and to be expected - a fate, you could say.

I don't know if I still managed to convey my view understandably. It's kind of hard to put in words.