From what I've heard, the hours you cite also enable moonlighting. Some people do a few hours a night and make as much as their day job. Sometimes it's even as

From what I've heard, the hours you cite also enable moonlighting. Some people do a few hours a night and make as much as their day job. Sometimes it's even as a contractor in a related field that might service their main role. At least they're getting paid for this "overtime"!