My brother went on it once and lost really badly. The only two things he said in the whole episode, if I remember correctly, were Kanye West, and a wrong answer for which he got roundly mocked by old Eagle Face. But he’s white, male, and went to a London uni, so while not posh fits your brief pretty well. He didn’t really care the whole thing tbh, and found all the teams who took it really seriously a bit much.
I broadly agree that it’s a bunch of self-congratulatory pants