Lucas was sort of a bullshitter, he was actually ratted out by some gambinos who were supplying him at the time. However he also obtained heroin from ike Atkinson. Nicky Barnes did obtain heroin from Madonna but it wasn't like he was paying some mob tax. It was simply an exchange of drugs for money, Barnes controlled the largest heroin market in the city if not on the east coast, he would buy it wholesale and then sell it in the stamped bags at retail level so his wealth was probably greater than a lot of people in new yorks criminal circle.Frank Matthews was probably the same if not wealthier just by how expansive his operation was. Now im not saying they were richer than carlo Gambino who had a lifetime to make his money, but I doubt he had the wealth that Matthews had at age 27.