From Mind Hacks:

Philosopher Eric Schwitzgebel has been investigating whether ethics professors are more moral than other people, and it turns out, they’re possibly less. He’s now turned his attention to economics and wonders whether too much exposure to ‘rational choice theory’ - that says it’s always rational to maximise profit - makes people more selfish.

Surprisingly, there have been several studies on exactly this topic, several which seem to suggest that economics students are more selfish than other students, but these all seem to be flawed in quite important ways.

Do you keep going with this thing? Are police law-breakers? Are pastors more unholy? Do plumbers have more dripping faucets?