Look at Communism, it began to crumble when Labour as value stopped making sense, i.e. intellectual work was the driving force of the economy during the cold war. Just ask Doctors in Cuba, where farmers often earn more.
As we move into a more virtual world, where work is no longer connected to sweat labour, or direct utility, when everyone owns a machine capable of digital and physical reproduction our fundamental understanding of value will shift; bringing about new economic principles.
(I am not an economist)