Chairman... Unfortunately not. Logging 8 hours a day does not mean those 8 hours were productive or even chargeable. Say it takes you 8 hours to service 3 wheels and the brakes on a C152 (surprisingly, many engineers can take that long!) and 1 hour for an experienced engineer to instruct and supervise you then the shop will most likely only charge out 2 of those hours because they don't want the bill to exceed the value of the aircraft and want to keep a customer.
You must always keep in mind there's a customer paying for the work you do. It's not the boss or the shop paying you, they merely hold the customers money for a week before passing it on to you. I tell my guy's to imagine if they were the customer, what would they expect...