Indeed. It's totally irrational, most of the doctors I know aren't that smart. Yes, they're very good in the area of their specialism, but more often than not they let their extreme expertise in one area cloud their judgements/abilities in other areas. I've had clinicians telling me how long they think it should take to develop a feature in our app for example. Even if they were an expert in software development (which none are) then it's still very arrogant to assume knowledge of our system and how we developed it.

Obviously this is a blanket statement, I'm sure this doesn't characterise every clinician. But I have seen this a lot.