”Mommy, how come all the other kids in class get new mops and I don't?”
Roger Wilco was the player character in the Space Quest series. He is a janitor, who saves the world countless times but earns no respect in doing so. He eventually joins the StarCon Academy, fulfills his dream of becoming a captain of a StarCon Federation ship, only to be demoted back to janitor soon afterward.
The first two games used the AGI system, the others were SCI.