PDR1, you are entitled to your opinion, as someone who was awarded the RAF flying badge, it offends me (and probably 99% of my colleagues) when someone not entitled wears it, although I can see how you ended up with it on your overalls. They should only be worn if you passed the appropriate course.
You would make an exception for films, re-enactments, etc, but swanning around with them when not entitled is not the done thing.
AP1358 states:
A flying badge, being a qualification badge, is not to be regarded as either a decoration or the equivalent of a regimental badge. Service personnel are not to wear any of the badges listed above and in QRs unless authority for them to do so has been granted in accordance with the regulations prescribed from time to time by the Defence Council.