I think he's also saying that since the government is the biggest gang of all and since there are all sorts of "gangs"(social groups, political parties, even actual gangs) the world over, and since he doesn't seem(in the song, at least) to belong to or care about any of them, then he(and others like him) make us less than 1% of the world(because the world is mostly or seems to be most about groups).
I think he's also saying that since the government is the biggest gang of all and since there are all sorts of "gangs"(social groups, political parties, even actual gangs) the world over, and since he doesn't seem(in the song, at least) to belong to or care about any of them, then he(and others like him) make us less than 1% of the world(because the world is mostly or seems to be most about groups).