In an episode of The Simpsons, Homer Simpson made a plea that makes sense to me. He asked celebrities to "Sign an autograph or two. Support a charity for something that hasn't happened to a member of your family. Let one of us regular guys write a terrible children's book."
I think his requests are reasonable. The last one, of course, has the most relevance to book authors. It has to be frustrating to write great children's books and to have them rejected in favor of children's books by celebrities. It seems nowadays, every celebrity has a story inside themselves.
Of course, the same applies to celebrities that write cookbooks that steal central concepts and some recipes from hard-working authors. Alas.