Morality based on materialist conditions
Society determines the character of culture.
Society determines the character of culture, consciousness and morality. Capitalism, then, determines the nature of morality. Consequently it provides the conditions that enable us to condemn the exploitation of labour power as morally wrong. If exploitation is morally wrong then there is a necessity to eliminate it and replace it with social conditions that are exploitation free. In this sense we can say that there is a materialist basis that justifies condemning exploitation and alienation as morally wrong.