The Wage Illusion Revealed — Das Kapital

Wages appear to pay for labour, but Marx shows that appearance is systematically misleading. Labour cannot be a commodity sold before it exists; what is sold is labour-power, the capacity to work for a period. The value of labour as such would be a tautology, since value is measured by labour time.

If workers received the full value their day creates, capital would vanish. Classical economists smuggled in the value of labour-power while still speaking of the value of labour, never reaching the distinction Marx makes explicit. In the wage form, payment for six hours of necessary labour appears as payment for twelve hours of work.

Surplus labour looks paid because all labour looks paid. Compare feudal corvee, where unpaid work was visible in time and place, or slavery, where even necessary labour appeared as service to the master. Wage labour hides the split inside one monetary payment, shaping law, common sense, and worker perception. The capitalist cares only about the gap between labour-power's price and the value it creates, yet both sides talk as if labour itself were bought. That transformation is not conspiracy. It follows from the structure of the wage relation and makes exploitation durable.