There are two levels of scammers here. One is the low level scammer that is directly interfacing with you. In these situations they are also victims that are being held by violence. Simply put if bad things happen to these people or not the scam will remain as this level is rather cheap.
The bosses will observe from a higher level based on the successful feedback and direct their efforts there, much like a spammer that calculates the return on millions and millions of sent emails.
To catch the bosses we need nation state/global level enforcement against said people. The problem is they quite often pay their local governments handsomely to protect against them.