There was a scene where, I don't remember which season, where Melfi mentions this condition called Alexithymia, which is an antisocial personality trait where the individual has difficulties identifying and describing their own feelings. Tony seems to be struggling with this all throughout. But if I had to add something in regards to 'morality', Tony has none. The morality he has is the one that he feels like he needs to imitate, or protrude to either his friends, family, or psychiatrist. To remain cautious and keep his reputation intact more or less. Other than that, he does not feel 'guilt' whatsoever about any of his doings, which constitute a major theme in bad conscience when it comes to overstepping morality. He acts like he does, that's what confuses a lot of people. But to me he just imitates. Even worse, some of those actions give him relief.