Working together has better results, but for example I dont think that a labor racketeer can do much with a crack dealer.

There was this documentary about the french suburbs and the criminals that came from them. A lot of arabs who have become big players in narcotics in France. One of the guys being interviewed said that the old-school french underworld didn't want to deal with them or work together with them. He said ''look at us we walk around in tracksuits and eat kebab, we are their opposits.''
Because of being isolated these guys have grown and are no joke. Maybe if the french cooperated with them they could have benefited from the Arabs like it happens here in the Netherlands.