Idk. They are obviously at least the 2nd most powerful and 2nd richest family. They coupd very well be the richest and most powerful. But the Gambino's in their prime were a money making machine. In every book I read, every show I see, everything my father has said, the Gambinos were the richest and most powerful. But we don't know for sure because we don't know actual figures. Carlo gambino was a better boss than anyone the Genovese's ever had though.