While Karl Marx got some things very wrong, like the labor theory of value, communism and the Dictatorship of the Proletariat, he was spot on about the Achilles’ Heel of capitalism — the obsessive compulsion of those at the top of the food chain to accumulate, accumulate, accumulate, resulting in periodic meltdowns, like the Great Depression and its recent cousin, the Great Recession, in turn producing civil disorder, and, sometimes, violent revolutions and wars (often as a pretext to sidetrack revolutions).