" The dark triad pushes people in the direction of manipulation—Christie and Geis found that the highest Mach scorers among doctors had consistently chosen to be psychiatrists, a field where manipulation and mental control are central, while, in a separate study, Machiavellian students were more likely to specialize in business and law than any other areas—but it does not compel them to push that manipulation beyond a point that’s generally socially accepted. "

― Maria Konnikova , The Confidence Game: Why We Fall for It . . . Every Time