But they weren't all Louis Armstrong. He was a better human being. Because Louis Armstrong's technique was better. Soul is part of technique. Emotion is part of technique.
Music is a craft, man.
Much of this has to do with their reassuring nature. Lucas' myth comes in the form of the Star Wars film, Marsalis' is presented in the person of Marsalis himself. As I have attempted to demonstrate, they revolve around male hero figures - Marsalis being presented as the living embodiment of a hero. The male hero is a very traditional figure - one in whom Society has become accustomed to see itself. As Campbell's interlocuter said, women wanted to be heroes too.