The free market deals in human beings. That’s what the labour market is. Goods & services traded on the market are produced by human beings, and their labour is part of the market mechanism—extending the principles of pricing and signalling is not great leap. See also: whores.https://twitter.com/born2crusade/status/1013476680650952704 …
That would indeed be true if the tendency of the rate of profit to fall hadn't forced capitalism to separate wage capital (labour market, determines purchasing power) from investment capital (virtual market, determines plus-value of objects).