But here's a quick list from the top of my head: Judy Faulkner of Epic Systems, Hamdi Ulukaya from Cobani, the founders of Canva, the founders of Stripe, Tobi Lutke from Shopify, Paul Graham himself, Taylor Swift, Beyonce, George Lucas, Roger Federer, J.K. Rowling. Probably dozens/hundreds of others.
If you do something that somebody likes and they give you $1000, that's ethical. But if you do something a million people like, and they give you $1000, then you're a billionaire, somehow you must be unethical?