Kind of strikes me as fighting over crumbs at this point. It is extremely rare to make money writing books, let alone a living. That’s just a basic consequence of people not reading books as much anymore. (People read more than before, but usually shorter-form content.) And the distribution of books people do read tends to be highly concentrated.
For what it’s worth, I don’t think I’ve ever looked at NYT bestseller or any other listicle to find a book. I don’t tend to like the books that “book” people like. Usually I buy a book because someone has specifically recommended it to me, or it is mentioned around a topic I’m interested in.