As regards the Officer/Sgt Pilot issue.
I'm currently reading Geoffrey Wellum's "First Light" (thanks to my friend Ozzy), and at the beginning of his book, when he had completed 'initial' training in Tiger Moths as a 'civilian trainee' with the RAF, he attended the RAF FTS at Little Kissington, his instructor is a Sergeant (whom he immediately gains respect and admiration for, both as an instructor and person). He doesn't specifically mention any problems associated with Officers resenting having to take orders or instructions from an NCO, but this may be because he and his colleagues (although commissioned Officers by this stage) are still very young, inexperienced and simply, they need to learn how to fly.
I can see how, as the War progressed and older Officers found themselves in Operatioonal Squadrons, there would have been resentment at an NCO being in a position to 'teach them something'. But rank doesn't, and never has, been an indication of a fighting mans ability and experience, as many a Platoon Sergeant in Vietnam learnt! ;)
He does account his first meeting with his 'Sergeant Instructor' whom he addresses as Sir. The Sergeant tells him he doesn't (not shouldn't, but DOESN"T) address him as Sir, but instead Flight Sergeant or simply 'Flight'. (But even when 'dressing Wellum down' the Sergeant refers to him as Sir - as in "Gee, Sir, you are useless, aren't you?")

It must have been a difficult situation for the NCO's who were clearly, far more excperienced and certainly had much to teach and much wisdom to impart (especially at this time - just after the declaration of war, but prior to the BoB - 'The Phony War', I believe the RAF pilots refer to it as).
I can imagine how some young 'Public School upstart' might consider himself a little 'too good' to be taking orders, or instruction from a 'mere Sergeant'! They are obviously some of those who 'failed' (got the 'Bowler Hat');D
Although, in Wellum's account, the Sergeant was the Boss, in no uncertain terms, and on a number of occasions, he was yelled at or scolded for not doing as well as was expected in a particular exercise etc.
A curious arrangement, if you ask me. I think if an Airman reaches a point where he is able to instruct, he should be promoted to a Rank commensurate with the respect he is due as an Instructor! ;D
