Capitalism is, and always has been, about reaching a state where supply exceeds demand. One could argue that once a business reaches that stage, they can put up a Mission Accomplished banner and fire most of their workforce. But because of how wealth is distributed, workers always need to be working so they're incentivized to extend the work and market as long as possible.

The same mechanism is responsible for the situation where institutions tasked with solving a certain problem (crime, cancer, etc.) invariably end up perpetuating the problem so they can continue existing.

You think some shmuck MBA setting up a devious pricing structure at Disneyland is bad? Consider that the US has more empty houses than homeless people, and more unsold cars in lots than people who lack reliable transportation.