They work first because of the challenge, second because of the mission, and last for the pay. The trainers are busy. All day, every day. They are constantly being challenged by their management and they are constantly challenging their students. Training isn't an easy job in the Higher Arky's.
Management is interested in much more than just training hours or bottom line training costs.
They want all the training detail broken out by their elaborate corporate structure. Summary numbers are interesting but don't tell the whole story. They want to know where their training investment is going and why. They need to compare all of the departments within a division with the departments of other divisions. Because in the Higher Arky's, sales training varies by department and has to be tracked that way.