Imagine you start working with your friend, and you start to get successful. He starts acting like an asshole more and more, the friend part shrinks and the boss part grows, and he’s oblivious to that.
But he also trusts you, would happily fund you building new things, and has an enormous audience. He’s only willing to share a small slice of the pie, but it’s a very big pie
Now either you leave and get a normal job, or you stay, get lots of autonomy, minor fame, and maybe a ton of money down the line, but you have to handle a narcissist.
Also by staying, you can steer the narcissist now and again - and that ripples out into the viewers