It has been my experience that "nasty little weasels" are nasty because they are concealing their own inadequacies! IMO the more imperious, the more they are afraid someone will "find out".

When I started 40 yrs ago in my profession I was bashed by nasty weasels all the time...they were sooooo threatened by a woman with ability!

Now of course, that has changed quite a bit. But back then it was fight to survive for me most days. In fact one Pediatrician who dumped attitude on me every day (he was a popular doctor in the area for some mysterious reason), dropped dead at 45 in his driveway, one day of a heart attack. That was the path he created for himself with his stressful judgemental nasty behavior...it killed him!