If that were true, we wouldn't have companies overproducing and burning unsold products to protect profits on the next model.

Business and economics don't work the way you naively assume. Businesses should have a natural incentive to provide an environment that doesn't kill workers because it's cheaper to not kill someone and not hire a replacement. This is entirely disjoint from the reality where we have laws saying things like "you must stop a machine before putting a person inside it".

Business and economies are not rational by any definition of the word. If something feels like it will be easier or more profitable, business will happily shovel children into the active machinery of a printing press until government forces them to stop.

We have something like 200 years of labor laws around this point. You should probably read some history and ask yourself why every government on the planet has been compelled to force legislation on business to protect the interests of the people.