Karl Marx was supposed to be dead and buried. With the collapse of the Soviet Union and China’s Great Leap Forward into capitalism, communism faded into the quaint backdrop of James Bond movies or the deviant mantra of Kim Jong Un. The class conflict that Marx believed determined the course of history seemed to melt away in a prosperous era of free trade and free enterprise. The far-reaching power of globalization, linking the most remote corners of the planet in lucrative bonds of finance, outsourcing and “borderless” manufacturing, offered everybody from Silicon Valley tech gurus to Chinese farm girls ample opportunities to get rich. Asia in the latter decades of the 20th century witnessed perhaps the most remarkable record of poverty alleviation in human history — all thanks to the very capitalist tools of trade, entrepreneurship and foreign investment. Capitalism appeared to be fulfilling its promise — to uplift everyone to new heights of wealth and welfare.

Or so we thought. With the global economy in a protracted crisis, and workers around the world burdened by joblessness, debt and stagnant incomes, Marx’s biting critique of capitalism — that the system is inherently unjust and self-destructive — cannot be so easily dismissed. Marx theorized that the capitalist system would inevitably impoverish the masses as the world’s wealth became concentrated in the hands of a greedy few, causing economic crises and heightened conflict between the rich and working classes. “Accumulation of wealth at one pole is at the same time accumulation of misery, agony of toil, slavery, ignorance, brutality, mental degradation, at the opposite pole,” Marx wrote.

A growing dossier of evidence suggests that he may have been right. It is sadly all too easy to find statistics that show the rich are getting richer while the middle class and poor are not. A September study from the Economic Policy Institute (EPI) in Washington noted that the median annual earnings of a full-time, male worker in the U.S. in 2011, at $48,202, were smaller than in 1973. Between 1983 and 2010, 74% of the gains in wealth in the U.S. went to the richest 5%, while the bottom 60% suffered a decline, the EPI calculated. No wonder some have given the 19th century German philosopher a second look. In China, the Marxist country that turned its back on Marx, Yu Rongjun was inspired by world events to pen a musical based on Marx’s classic Das Kapital. “You can find reality matches what is described in the book,” says the playwright....