While I don't disagree The correlation between a higher income and having a more flexible schedule to allow you to keep to the night-owl schedule is easily explained on the job traits front rather than the personal traits front.
I have this experience too. In my experience Early Risers tend to be suspicious of night owls, but I think it might be a deeper issue of personalities. I found this link that says early risers tend to be conscientious where night owls are more of the creative types and it makes sense that two of those kinds of personalities might not necessarily get along well ... at least initially
The Morning Fascists rule the world, however. While we're sleeping, they are out there making noise and rules for everybody else. I was told that as I got older, I would prefer rising early. Now that I've reached that age, I can say that, no, I don't prefer rising early. I get much more done at night.
I've lived both ways (regular rising times that have varied from 4:30 am to 12 pm), but I'm a natural night owl. I find the somnic cultural fascism of early birds obnoxious.
I don't like that I'm basically a down the line stereotype of night owls excepting some business related stuff.
http://www.dailymail.co.uk/sciencetech/article-2298354/Early...