As Vito Corleone said."A man has but one destiny" When he was young he was legit until he got fired from his job becuz a mob figures nephew was to work there, and his destiny was to take revenge a live the life of crime. I beleive mike had the same exact destiny, tho he tried to stay away from the family business he finally got sucked in. And when micheal tried to leave his destiny by trying to make his family legit, he got screwed over by the church and immobiliare deal. and then his daughter was killed becuz of him trying to go legit. I beleive that in this movie micheal tried to change his destiny by trying to go legit and then suffered the consequences, lose loads of money, don tommasino being killed, calo dying, and ultimetely miceals daughter being killed.