I've wondered about this as well.
From what I can gather, at the very least dealing certain drugs was very much looked down upon.
I've heard (from a relative who worked for a mob front, in Melrose Park) that Rocky Infelice was held down for many years, because he sold heroine, in the late 50's early 60's. However there were no qualms in funding drug dealers via juice loans.
That makes sense because he was very active in the early 1960s working with Buccieri, Torello and Ferriola. You'd think he would have gotten made earlier. Being held back because of drugs explains it. Americo DePietro was another one too. I think DePietro and Infelice were doing it together and both were sent away for a while. Didn't hear much about DePietro later, so maybe he didn't get made.
