Just out of interest you say the servicing cost is more than the hours spent on it. Is this quoted time or how long the machine was in the hangar?
I can only speak from the world of fixed wing servicing but we have to do paperwork (before and after the servicing) as well as time spent actually on the machine and there isn't just one person working on the aircraft.
Normally our hourly rate is well below on scheduled servicing. As others have said, how much would you pay to have a car serviced of a similar value - and it isn't a case of plugging it into a big black box and saying 'computer says no!'.