Since power is itself a value, forms of influence which include power in their scope are usually themselves forms of power. The king’s mistress, through she has only influence, not power, over the king, may have power over his subjects to the degree of that influence. Forms of influence based on power are themselves forms of power only if the scope of the influence is included within that of the power in question. The king may exercise influence over standards of morality, say, by virtue of his power position, but he does not necessarily exercise power over morality.