Users are charged for compute and whether the outcome is positive or negative doesn't cost more for the company. I don't see where you got the idea that there are incentives to waste tokens.

EDIT (can't reply): Have you never run a business before?

Dating apps are weird because you can't have repeat customers without failing to deliver. With literally everything else repeat customers are what you want to optimize for. If your AI product fails to deliver your customers can't integrate it into their operations and you'll lose them eventually. That's a disaster.