Or, the products could shut down, or lower their prices. If there’s no demand, why put energy into making demand rather than making something people want? It’s the lowest bar of achievement in this society; while I understand money can be a powerful motivator, this lowers the value of the entire work force.
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.
A revealing sign that an engineer isn't running that shop would be the production climbing to 50 sandwiches. The same 5 people would be fooled into buying all of them by advertising, special discounts etc, then they would eat 5 each instead of 1 becoming obese, thus helping the medical business, and throw away the rest helping the trash collection and disposal business.