Ancient Egyptian pharaohs were considered to be both divine deities as well as mortal rulers.The throne of Egypt was primarily intended to be succeeded from father to son. however in many cases this line of kingship was interrupted by murder, mayhem and mysterious disappearances.
In ancient Egypt, there are many different jobs for the Egyptians to do. Each job must have a certain person doing it. Like if a farmer was a scribe. He wouldn't know what to do. So a scribe should do the job of a scribe.