On the contrary of popular belief, having multiple professions doesn't qualify as talent. If the person is good at everything, that is a different matter. Not really his biggest listener, but I'm sure "Jacko" pioneered many things that made him supposedly great. He was a man that truly worked hard in what he did, whether it was his music or his dancing. He was an honest worker who deserved his fame and fortune.
Still, claiming he was better or comparing him with artists of older periods is pretty silly and pointless.