Which they have to keep an eye out for because doctors fell for drugmakers' lies and overprescribed addictive opiates while claiming they aren't addictive (which makes it even easier to get addicted).

Or they just use that as an excuse to not have to deal with an annoying case they can't flash diagnose and then get offended if a patient decides to do their own research because the doctors they see can't be bothered.

I always think back to the time my ex was trying to get a diagnosis for a rare condition that matched her weird symptoms very well. She got a new family doctor, a young new doctor, and he would always dismiss her when she brought up wanting a referral to a clinic that specialized in it so they could diagnose her or rule it out. One time I went with her, she brought it up again, he said he didn't think she had it, and all I did was ask what made him think this wasn't the case and he admitted he didn't know much about it and would do some reading. On her next appointment, she didn't even have to ask because it was as obvious to him that she probably had it as it had been to us, he just gave her the referral.

So his justification for dismissing her belief she might have that condition was jack shit, probably involving imagining House saying "it's never lupus" or something like that. Like yeah, rare conditions are rare but some doctors treat that as if it's impossible instead of rare and then don't even bother learning how to tell.

The Dunning Kruger effect seems to be particularly strong in the medical field. Though to be fair, they do have to deal with their share of idiots and liars, but it makes them jaded rather than sharp.