The power and influence of leadership goes from, at one extreme, absolute control such as in a rigid dictatorship either in groups or countries, to, at the other extreme, completely egalitarian societies in which all people are equal.
Individuals do vary in skills and other personal characteristics.
As a result of this heterogeneity, individuals react differently in groups. Some people because they are shy or other characteristics are reluctant to attempt to take on leadership roles. It is only with major stimulation and then with reluctance and usually for short duration that such individuals become leaders. In this country, we have always placed a high value on the rights of the individual. Thus, the closer a group, organization, society is to being egalitarian, the higher we value such a group.