Of course concrete and construction were both big for the mafia. But with only 2% of a contract being kicked up to the commission, was the money really that mind boggling(when compared to other rackets)? And to add to that, they have to divide that 2% amongst 4-5 families(4 after the Bonannos were cut out of the commission). Maybe someone can educate me. It put them in a position of power because nobody could build without them. But how much money was really being made compared to garbage, gambling, gasoline tax, pornography, food industry such as olive oil and so on?