Something for Teachers to Consider: Act Machiavellian, Earn More

Are teachers, on a whole, a great bargain for the American economy? Or, does their personality category drive them to earn less and hold on to rigid contracts more often, pricing themselves out of success? No, this is not some riff on Aldous Huxley’s Brave New World. It’s the results of a survey written about in the New York Times.
Do nice girls always finish last? What can aggressiveness do for your salary?