If the reward is removed, the new behavior may disappear. . . But merely holding the office does not an expert make. Power derived from the degree to which one is admired and liked is called referent power. People want to identify with others whom they consider admirable and likeable. The eyewitness to an arguement can influence others who did not hear or even know about the arguement.
Informational power is limited to the situation for which the information is relevant.
This is one of the sources of Rumor. The more you can base your own position on MORE THAN ONE OR TWO of the above, the more secure you will be. In my view, SCA kings are neither constitutional nor absolute monarchs. They are feudal monarchs. That may be less true in the West than in the East or Middle, but I think it is fundamentally true everywhere.