Ok let's just break this down

The mobster himself is NOT the businessman. Only difference is he has the money to start the business (sourced from other mob activities) and can employ guys to work for him

So on paper he's the boss/ businessman and gets credit for running a successful business.

Take Sammy bull, he was into construction but his brother in law was the real
brains behind the operation.


Plus like any business, once u learn the trade it's not
really that hard, if u have the means
to start it off/ have customers then you're in "business".