Long ago, when the RAF was a different world, and Yatesbury was a busy electronics school, in the interests of social life there was a weekly Bingo night run by one of the officers' wives, and a few of her friends came to keep her company. Mysteriously,when it came to the accompanying raffle at the end of the evening, the prizes were selected by the organiser after the ticket holder was determined, with the good stuff going to her friends.
A boycott of the event for a month, with a discreet word to the SWO resulted in a compromise where a Corporal's wife ran the raffle.
Conversely, where sport was involved rank appeared irrelevant during the activity.
Inter-rank occasions work somewhat better than RCW ones, in my experience.