Those markets create pressure to ensure that real physical goods and useful services are priced accurately. Prediction “markets“ are in my estimation no different than roulette.
If you cross your eyes hard enough, you could claim that roulette gambling provides economic pressure to ensure that roulette wheels are balanced evenly. But when the roulette wheel is Vanah White’s dress color, what does that mean? Charitably, it’s a fun pass time. Through a dystopian lens, prediction markets pressure all public figures to play a kind of Keynsian Beauty Contest with their own behavior. Like social cooling for the celebrity/owning class.