I remember meeting an RAF Provost Officer in the early 2000’s who wore RAF Pilots wings. He said that he had been axed from the Chinook OCU but had qualified and been presented with his wings at the end of his rotary training, so still wore them.
I’ve seen photos of various RAF Police NCO’s wearing RAF Pilots Wings and Aircrew brevets. I can only guess towards the end of the war when the large numbers of surplus aircrew were reemployed in Ground Trades.
There is a current Serving RAF Doctor who wears RAF Pilots wings. He has never been a Pilot but I believe he may have served at RAF CAM and may have completed Flying Training as part of his medical requirements for studies of effects on Pilots etc.