As hinted at in my previous post, it's uncool to work an early work schedule.
At the new company I work at in Manhattan, which is a small but up and coming media company that you have probably heard of, I noticed that at 9:00 AM most of the offices here are still empty. The place was more crowded at 6:15 PM when I left last night. Obviously I've picked up some bad habits working for the government, like getting to work before 9:00. (Not to mention the whole bad work ethic problem.)
Paul Fussell, in his book Class, mentioned that the higher you are in class, the later you eat dinner. Maybe it's because the higher classes are still at work when the lower classes are eating?
Maybe the thing is that higher class people have fun and classy things to do at night, while the boring lower class people are just watching TV so they can go to sleep early in order to get an early start on the next day?