Milton Friedman on Greed

Milton Friedman does an excellent job of refuting the claim that capitalism is a system built on greed in this brief clip from 1979. The answer is that sure human actions are motivated by greed/avarice/self-interest (broadly defined) under capitalism as they are in every other conceivable system. Capitalist systems just do by far the best at pretty much everything of all tried systems of economic organization.

I would point out that in addition to the great innovations (which ultimately serve very humanitarian purposes), the great humanitarian movements have sprung out of capitalist societies.