I have been flying around the past few days, and attended (amongst other things) an excellent meeting on academic integrity. It will take a few days to catch up here. My flight today, I sat next to a man who insisted on sending a million text messages during takeoff despite repeated requests by airline staff not to do so. I have no idea whether this causes real risk to other passengers, but it made me wonder what sort of person would recklessly place his fellow travellers at increased risk of any amount. The same sort of person or company who might find it easy to behave like this or like this or like this or this and still sleep well and play with their kids I suppose.
"...the most devastating features of psychopathy are a callous disregard for the rights of others and a propensity for predatory and violent behaviors. Without remorse, psychopaths charm and exploit others for their own gain. They lack empathy and a sense of responsibility, and they manipulate, lie and con others with no regard for anyone's feelings."
Read on: here and here.
See also DSM IV criteria for psychopathy.