Exactly mate, data did show how much money they make out of this scheme. But I will assume that it is close to $3 billion as usually DOJ or US SEC are seeking fine close to how much money they supposedly get from this fraudulent act.
Another question is, where would be the $3 Billions goes then? Well well, another cash to be corrupted.
As far as I know, those bank fines goes to US Treasury, but I don't know if it is possible to give it back to the victims, very complicated process.