Emperors love logic, control, order
politician. boss. owner. military: General, Captain. Leader. Solid. Rock. Philosopher. That older Professor. Sage. Engineer. Supervisor. Cameraman. Scientist. Television producer. Policeman. Inventor. Welder. Author of Wise Books. Lawyer. Builder. Game builder. Mathematician. Problem solver.
I see the Emperor as someone who could definitely work with their hands. He is someone who may have started at the bottom and worked his way to the top. He is not afraid to get dirty and work hard. That's why he's the Emperor.
Of course, each card represents a persons on the physical level as well (signifier). So just because one Emperor inherited a business from his father and never got his hands dirty, doesn't mean that the father who started the business didn't. Whereas, both are Emperors.