 A natural Marxian reply might be to abandon the claim that interest-based motivation is causally sufficient for successful proletarian revolution, holding instead that the proletariat can come to see that capitalism is incompatible with the dignity of human beings or with the full realization of their potential for harmonious, creative, collective control over the natural and social world and the abolition of all forms of exploitation and exploitation. On this view, the motivation for revolution is a kind of perfectionist ethics or, more modestly, a desire to end human degradation.