how gangster is rap?

I feel at times rap music has its very non-rap characteristics, I mean when they are constantly coming up with new dance moves trying to out perform the previous dance move is very not gangster. lean with it rock with it was as gangster as dance songs can come because it involves very little movement, but then came a more upbeat cupid's shuffle and the very interactive soulja boy. I do enjoy the latest craze: do the john wall as much as the next person but at least it's coming back to the days of lean with it rock with it instead of soulja boy. What an honor would it be to have a song made up about a signature gesture I do...only if only i was John Wall.