Of course there have been several different ways for creating hierarchical systems proposed in the literature.

Indian society is largely composed of hierarchical systems within families and communities.

Like us, the meehs use a hierarchical system of command.

In any hierarchical system, there were going to be people on the bottom.

Elites are those who make decisions in the hierarchical institutional systems of modern society.

The simple dependence of the hierarchical system is then broken.

A competently managed hierarchical system can take care of itself.

Money in its current form is a hierarchical system, the exception being when all people are paid equal salaries.

The Shakers were organized in a hierarchical system of four levels.

I personally believe that this has to do with the demands made of women in the hierarchical system.