I'm saying that its an arbitrary choice for a society to allow companies to base compensation on supply and demand. As soon as you institute law to keep laborers from occupying factories and taking them over, everything subsequent is arbitrary and can be chosen to achieve whatever social goals you want. Supply and demand is not some law of nature. Its a phenomenon that emerges in particular legal regimes.
Supply and demand is a economic model that exists in ALL economies that have finite resources and free exchange. The only ways to overcome supply and demand in the long run (as even the law of gravity can be overcome in the short run), is to either limit free exchange by force or have access to unlimited resources.