He's probably just glad he was able to be the boss and make some money without being shot at like most of the previous bosses. I think his tame nature turned the family around back into a more traditional fashion. Scarfo expanded them and their earning potential but he did it in the way a violent urban drug gang would do it, he only gives you one warning or none at all. Scarfo will always be the face of that organisation whenever its mentioned. He took them to their peak of power and notoriety. theres gonna be a few associates from the scarfo era that are looking forward to some of their old chums coming home and hoping they will tear some shit up.