I recall the movie “The Right Stuff” being regarded as pretty accurate at the time. I don’t know for sure, but it did depict the test pilots and astronauts as pretty arrogant (highly confident) egocentric throttle jockeys.
I know a couple of fighter pilots today and believe that... not much has changed. I expect it takes a certain level of crazy mixed with some coordination, intellect and confidence to be good at it.
Arrogant fighter pilots. . .”hard to be humble when you’re perfect in every way.”
;-)