[...] Capital aims at lowering the price of wage labour (wages) and increasing the price of commodities in order to increase profits. Workers can refuse work in the form of strikes and thereby attack the wage mediation and money profit, and they can refuse or eliminate prices by trying to obtain use-values below market prices or for free (e.g., by refusing to buy certain products and producing them together with others). So money is not only a medium of circulation, but also a "mediator between the classes" [...] and an object of class struggle.