Nicki and Rih are where they are because of the machine behind them. Let's be real
they got payola on their side and a machine.
But they're not any more talented than the girls in the OP. In fact, both Nicki and Rih try to give us dance in performance and are never exactly on point or revered in the dancing aspect.
They cater to the "bad girl/smoke weed" image that Top 40 will only acknowledge in a black girl. We've seen their ass cheeks and nipples more times than we've seen our own. It's apparent that urban artists will only find mainstream success if they're willing to pour it up, pour it up and work with a monster team.