Hello there, you must be new to this world.
Fact: People with no experience have been getting jobs since time began. Sometimes people who are already known in one area are offered jobs in other areas, even if they have no experience in that other area.
What do you think of footballers writing biographies, or maybe actors, or maybe astronauts. I mean they will be bought in bulk by people who want to read about those people and their lives. I have noticed that there are few celebrities who are writing fiction despite not originally from the writing world. Getting publication deals easily, maybe because of their name. Is that bad, if they end up a good read, despite them not previously having experience.
Maybe you are saying books are a scam, it could explain a lot?