Am I missing something or is my contractor being greedy?

[Christopher B.]

I pay $25/door to install std. Pre-hung doors, $50/door if they are bi-hinge doors. On Friday a new carpentry crew I'm trying hung 11 doors (8 singles and 3 bi-hinge) in 3.5hrs. So he made $100/hr minus $41/hr for his two guys (1099's) for a gross profit of $59/hr. I understand he has business expenses, we all do, but is this not pretty good money for a contractor? I think it's darn good pay but my new carpenter feels it's too low. 

So what am I missing here? All the contractors that complain about investors being cheap feel $59/hr is low pay? This isn't fair profit? My guy feels he should be getting $625 instead which ends-up being $137/hr for him. If contractors feel anything less than those rates are for "unlicensed immigrant workers" like he said, I may be on the wrong side of this business equation.