Most people work for someone else, the productivity is a for a paycheck. But secondarily you are also learning skills which can either propel you up a career ladder or give you the basics to start your own business. Sour grapes over how much profit shareholders are getting does not serve ones own interests—either start your own business or maximize your own salary/billable rate in the labor marketplace, but don’t cut off your nose to spite your face by focusing on how much profit-sharing you are not getting in one particular situation.

Sometimes it's just more pleasant to focus on the work, even if it's boring and we are doing it for someone else. We have to spend the time anyway, we could spend it by being alert, or distracted and drifting off. Being alert feels good and there is some satisfaction from the work being done. Being distracted is mentally draining. Also, it's not only the stake holder that is profiting from the work, it's society as a whole - we all depend on this work.