Is Marsalis being blamed or accused for making money, having a philosophy that you despise or for making music that does not appeal to your ears ?
In terms of moneymaking, they are a lot of worse culprits than him. If he can make money doing his stuff, good for him.
Philosophy wise i try to separate myself from my appreciation or non-appreciation of the music and the artist's opinion about it. If an artist dislikes another one for artistic reasons, am i supposed to choose between them.
Finally, if you don't care for his music, ther's plenty to listen somewhere else instead of hating the guy.
I can understand the annoyance at the guy and i share it for nominating himself, prime minister of jazz or whatever you can call it. But quite frankly, i don't care much about the opinion of the masses regarding the cultural industries. As long as he does not put his weight to forbid music he does not care for, he can do whatever the hell he wants.