I think his prespective is pretty clear. And he's not simply asking for money, or denouncing the value of education. He's calling out the entire system of institutions and corporations that make tons of money off of him while he is not allowed to. He's questioning the integrity of those organizations that ask him to go to class and maintain his amateur status while forcing him to do promotional pictures, commercials, autographs, etc. for their monetary benefit. Such hypocrisy.
The NCAA likes to sell propoganda like their "most student athletes ...blah blah blah..." but most student athletes aren't making them millions. It's Ben Simmons on an ESPN commercial or a NCAA tournament ticket website. And there are slews of businesses that make money when a potential top pick comes to town and more people go to games.
Let's not even get into the racial/social implications that arise with this sort of indentured servitude in a sport in which a high percentage of players are African-American while a high percentage of coaches, school administrators, NCAA henchman, NBA owners/executives, etc. that make bank are white.
Ben Simmons should lauded for his honesty.