We live in an age of experts, and if you are a TV star... it is difficult, if not impossible, to gain respect as a writer of the kind of books I've written or the kind of film I wrote and directed.
The trouble with most stage plays nowadays is they are written by people who grew up not reading or seeing the great theatrical literature of the day, but watching network TV. And so they are more like TV sitcoms than stage plays.
I am not simply an actor, but also have written books and now directed/written a film, I have some people that are interested in that aspect of my experience.