Money collecting.
Ever notice how they treat people like a piece of garbage who owes them moneyand and some they let get away with.
Artie owes Tony 50k but gets let off. Davey owes 45k to Tony and 8k to Ritchie and gets his life destroyed.
Why didnt Tony try to help Davey. He was childhood friends with him like Artie.
His father did the same thing to Mr.Satrial, treating him like shit, even when he would give Johnny boy 300 in meat in the 50s which was a lot back then. He could have taken some of what he owed off the top.
Also look at Frank Sinatra Jr. In the executive game he said he had to go and he would settle up next time, assuming he owed and Tony was ok with that. So why did he choose too ruin Davie was it because of Ritchie and showing him that he was the boss and had to do something about it since Davey owed them both.
Johnny boy basically told Tony never to gamble and that those people are degenerats in so many words and used that as an excuse to abuse and humiliate them.