It is normal to ask yourself occasionally, “does my job contribute anything substantive to society?” When I worked as a security guard at my college's library, I would have to watch unattended items on the security camera to make sure they weren't stolen. After almost a year of working at these libraries and countless hours watching footage of unattended laptops sitting on a table, I never saw an item get stolen. Never! Not once! My watching it had no positive impact whatsoever. That really mad…