Are you implying that the workday doesn't count for anything? Someone's gotta bring home the bacon.
When I was in the office, I'd be there for 8 hours, then get home and take over, then also work at night with the baby monitor on. My ex-wife only really had to take care of the baby that 8 hours a day, I handled most of the other 16. Of course she complained that I wasn't doing anything. So after that I started working from home for my main job as well. After that she only really had to take care of the kids (one mine, one not) for the 3-4 hours a day that I got to sleep.