I believe him to be capable, perhaps more than any of his rap contemporaries, to do something for the disenfranchised, marginalized, and oppressed people that he so often refers to. I just don't know that the fashion nonsense, billionaire hype, and thirst for attention is the means by which to do so.
He's trying to break the system from the inside. He's at the top of his
game, but he knows there's an entire world out there that's virtually out of bounds for him. He's rich, sure, but he's still not part of the social elite. No matter how successful he is as an artist, he'll still be a "slave". He believes there is still a massive racial division in the upper class, and he's probably right. The American dream wasn't engineered for people of his background. So as far as he pushes himself and his art, he'll never, ever
rub elbows with the elite. The old money. And his fashion ventures are an example of that. Fashion is something he takes very seriously, but no matter how hard he pushes to be seen as an equal to his peers in the fashion industry, he'll always be a novelty to them because of his background.
"But it's fashion, what's the big deal?", you may ask. That's not the point. It would be different if he were put on the same level as Ralph Lauren and failed. But he wasn't even given a chance, and that's the root of his frustration. So what does he do? He begins to make noise. He begins to flip metaphorical tables, doing all he can in his position to seize the reins of American culture.
He brands his clothing with confederate flags, calls himself "Yeezus" and simultaneously rids Kim Kardashian and a motorcycle through the American west. He also makes Yeezus, which is also pretty controversial, if this thread is to believed.
And it's important to note that his fight may not be your fight. You're not going to be as rich as him. So why bother? I just think it's interesting to watch him tear things apart and make people angry, because if people are getting angry, he's at least pulling some emotion from people for once.
And regarding the "amount of people listed/ not listed on the credits", it's pretty clear that Kanye is the primary auteur of his works. If there's a marketing scheme behind Yeezus, it's Kanye's scheme. And to be honest, I actually find the contradictory "minimalist/maximalist" essence of Yeezus to be pretty cool.