I am convinced that if the market system were the result of deliberate human design, and if the people guided by the price changes understood that their decisions have significance far beyond their immediate aims, this mechanism would have been acclaimed as one of the greatest triumphs of the human mind.
The justification for rap rock seems to be that if you take really bad rock and put really bad rap over it, the result is somehow good, provided the raps are barked by an overweight white guy with cropped hair and forearm tattoos.