Well now I feel personally attacked!!

jk, I agree to a certain extent that we computer dwellers are privileged
I really doubt DPC has ever spent 12 straight hours coding, and if he has, then he's doing it wrong (unless it's simple if else monkey typing).
I've done my fair share of overtime and what I can say is that it's actually quite counter-productive, it absolutelly drains me mentally, and after 6 or 7 hours my logical thinking starts to go out the window and I start to run circles around the problem. Then I go home after spending 10 hours around a problem, get a good night of rest and sleep, return to work the next day and manage to fix the problem in 2 hours.
And although the work is not physical, anyone who thinks these conditions for prolonged times won't fuck up your health is dead wrong.
Every collegue of mine attests to the same problem, the only people who actually think more time == more work done (by a single person) in IT are clueless business managers.
But in DPC's case, since he wants to do everything himself he'll always have more menial tasks that barely require a braincell to be done so he can do that when he's tired and he'll still be putting in the hours.