In godfather 3, we see that Michael Corleone is now accepted as a legitimate businessman and he has successfully legitimized his business. He is immensely wealthy. I have always said that this was probably the goal of the early godfathers(Luciano, Gambino, Lucchese, Genovese etc.). But we never really saw a boss successfully do it to the extent of Michael. Who do you think could have made the successful transition and became a business magnate like Michael in Godfather 3?