I remember when people used to say that Rowling was different because she made her money from writing or whatever.
If all she did was sell books it would be different than what she actually did which is create a massive franchise that exploits the labor of countless others. Of course if all she did was sell books then she wouldn't be a billionaire in the first place. Same thing with all the other celebrity billionaires, they wouldn't be what they are without systemic exploitation, it's just not possible.