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"The kings don't have to go away. They can exist as an extension of the grace of the people"
That's the ideal solution , rarely achieved ,
the "top ruler" model presuppose that he (she) lower the tensions and frictions in a society by being the embodiment of "justice" tempered by mercy
His (her) second duty is a war chief to defend the society against its enemies
in the coronation ceremony this is symbolized by the candidate holding the sword in one hand and the staff of justice in the other .
The Saudis and other Gulf Sheiks are far from this ideal , they are mostly a family of predator /parasite
the Baath dictator like the Assad's or Saddam Hussein were above average Arab rulers , from a very low standard
The Sauds will suck the plenty of the land until the last drop
They rely for their survival on doles to an useless workforce
well paid Pakistanis mercenaries , a bigoted religious establishment and the benevolent protection of the US military and Israel secret service