Do you, by any chance, have any data to support that? I am sure there are people for whom it's a problem, I'm not sure it's true in general, even among the nerdy cluster.

I don't have any hard data, but I can go back to my example of engineering. Speaking with physicists in particular it's clear that many don't respect engineers much at all, well beyond what is justified. It's not clear to me why they hold these opinions.