The first category needs splitting. There are people who really are two step ahead and full of themselves. They are impatient arseholes who can’t be bothered to work with lesser beings.
The good about this is that they do have value as long as approaches correctly. By correctly I mean put them in a separate office with bars at the windows and it’s own coffee machine and make contact once a week or if the world is on fire.
The others are people who have the impression of knowledge when practically they have nothing to offer. They are just arseholes who get louder and aggressive when forced to confront their lack of …well …anythng.