There are, rightly or wrongly, strong incentives to not be creative. To do the thing the medical consensus recommends, even if it is incredibly flawed, leaves the doctor personally safe. To try an experimental idea on your own could get you sued for medical malpractice. Which is I suppose to say, that MDs have been given a strong incentive by our system to suppress creativity.

(Personally, I think there’s a good reason for this in normal times. Medical research is hard and personal opinion will never compare to years of research, especially when lives are on the line. In times where years of research aren’t actually an option though...)

Of course we need to factor in malpractice lawsuits, administrative restrictions, tidal paperwork etc. etc. into anything which may have happened to medical professionals' creativity.