Keep working

How much can a person work in 1 week? I guess the answer is different for each person, but I think Joe should take away the grand prize. He was in Phoenix all last week. He left super early Monday to fly there, worked all night, slept 1 hour, worked all day doing his regular job, and then worked all night again. He did this all week long. Then he came home Friday night. He spent Saturday at home. Sunday morning he jumped in the car, to drive back to Phoenix to deliver 2 trucks. He drove all day Sunday, slept for 4 hours, stopped at the side of the road to do his regular job for 4 hours, drove until he got there at noon. He then went to the airport, got on a plane, and arrived in Dallas at 7pm. Tomorrow morning he has to do a bidwalk at 9am, which means he'll have to leave around 7am again. After all of this, he is STILL not appreciated at his job. What gives?