Some of these are competent physicians. Some.
I believe that ‘experts’ such as doctors, are mentioned in the Peter Principal. Physicians who never see patients but are always called upon to analyze the latest ‘medical’ breakthrough. They are kept on the staff of media organizations for their title alone. Think Dr. Oz, Dr. Phil etc....
Can’t stand either, but while Dr Phil actually fits the definition of a quack, apparently Dr Odd, err, Dr Oz is a competent physician within his speciality. They’re both insufferable Oprahbots however. Too bad I can’t get my wife to see that!