Even when I joined the RAF in the late '60s, it was quite normal for RAFC flight cadets to buy gilt metal RAF 'sweetheart' brooches for their girl friend / wife / mother (hopefully not all the same person, except perhaps in Norfolk).
So if some RAF friend had given her one, that would have been fair eno...
Perhaps I should rephrase that. If some RAF friend had given her a sweetheart brooch, that would have been fine by me. But the RAF flying badge she's wearing in all those Alice Cooper lookalike toothpaste adverts is totally inappropriate and she should remove it.