Leftism: Chile has long been a global model of free-market economics. But on Sunday, it elected socialist Michelle Bachelet, who ran on a platform of tax hikes and "free" education. What drives a country to reject success? Bachelet took an astonishing 62% of the vote against her more conservative rival, Evelyn Matthei, who drew just 38%. It wasn't entirely surprising: Bachelet projected a cheery, confident, maternal demeanor and made few gaffes, quite unlike the less polished Matthei. She also had a good record: As president from 2006 to 2010, she left office with a phenomenal 84% popularity rating — in...