"The power of capitalist realism derives in part from the way that capitalism subsumes and consumes all of previous history: one effect of its 'system of equivalence' which can assign all cultural objects, whether they are religious iconography, pornography, or Das Kapital, a monetary value. Walk around the British Museum, where you see objects torn from their lifeworlds and assembled as if on the deck of some Predator spacecraft, and you have a powerful image of this process at work. In the conversion of practices and rituals into merely aesthetic objects, the beliefs of previous cultures are objectively ironized, transformed into artifacts. Capitalist realism is therefore not a particular type of realism; it is more like realism in itself.
As Marx and Engels themselves observed in The Communist Manifesto,
[Capital] has drowned the most heavenly ecstasies of religious fervor, of chivalrous enthusiasm, of philistine sentimentalism, in the icy water of egotistical calculation. It has resolved personal worth into exchange value, and in place of the numberless indefeasible chartered freedoms, has set up that single, unconscionable freedom — Free Trade. In one word, for exploitation, veiled by religious and political illusions, it has substituted naked, shameless, direct, brutal exploitation.
Capitalism is what is left when beliefs have collapsed at the level of ritual or symbolic elaboration, and all that is left is the consumer-spectator, trudging through the ruins and the relics."