Nobody, but you must see how this can be abused to do so. A system that can be abused will be abused given the right incentives. As it stands companies are incentivized to pay as little for labor as they can get away with, and if they are allowed to “allow” workers to work excessive overtime, they will. And it will cost every other worker our free time.
If you enjoy your work, that’s great, just do your work during work hours, don’t use your free time to undervalue other workers in the industry.