This is why the Giannis–Kalshi situation is troubling. When an athlete has equity in a platform where people can bet on outcomes tied to his own career, the issue is trust. Fans are being asked to believe the system is fair even when Giannis can make money from speculation about his own future. Prediction markets make more money when more people speculate, regardless of the outcome. That means Giannis benefits financially from more rumors, more uncertainty and more betting on his career. Once insiders can profit from prediction markets, fans aren’t betting in a neutral system. They’re betting against people who may know things they don’t. When insiders know and fans are guessing, that’s not a fair market. It’s extraction. And when fans feel they might be exploited for money, it undermines the belief that what they’re watching is real. In sports, the perception of integrity is the integrity.