I believe some of these folks have worked for me over the years

Most sound like they might benefit from a tidbit of wisdom that Chip Foose (a very prominent custom car designer) said his father passed on to him:  "The most important education I ever received was the things I learned after I knew it all".  Too often people, especially professionals, seem to forget that education is an ongoing process that ends only when your days on earth end.  They learn just enough to get the job and presume that they know everything they need to know.

Even more irritating is the management philosophy of "not actually knowing anything", but being able to BS your way to the top.  Unfortunately, most folks I have reported to fall into this category.