I think...it's because you're young and grew up in a good situation. Where you could see the right and wrong and didn't have to deal with the grey area... [Akito knows he had to grow up damn fast, both to please his brother and keep his own sanity intact]
I used to think that things were right and wrong like that...but I know different now. And it's...hard, to accept it...but there's nothing we can do about it...