I don't want to start too many threads so I pour this in the behavioral sink.
Banding, bonding together in groups has been The Way of Men(TM) for many millenias, to enable the group and thereby the individuals to survive, to continue and pass on their way of life.
In such groups it is critical that the members re-member their origins. The motivations of the individuals have to be valued by the group. Man does not want to belong, he wants his essence to become the group, ultimately tries to be the group. Yet the essence is always evolving, on the inside as one tries to uncover the self, and on the outside in the form of group dynamic/change. Therefore it's a continuous struggle and a state of ultimate being, being content, being satiated for a prolonged time is unobtainable by the masculine - it's in its nature - the group remains dynamic.
“Men grow tired of sleep, love, singing and dancing, sooner than war.” - Homer.
If anything, the tree of life is broadening over time, some branches wither away while others grow stronger to change again. There is no end but an end in itself. These groups are always the sum of self and values of individuals.
Whereas the feminine is about uniting, the masculine is about separating. The size of a group is determined by the ratio between feminine and masculine qualities within it.
The feminine seeks to integrate while the masculine is fine with establishing colonies, which is the spreading of one's essence. So there is a tendency for groups to splinter off which is possible as long as there is enough fertile ground to expand into.
Men welcome adversity. Defeat can be bitter, less so, if part of the adversary is recognized in spirit as being of one's own kind. Pleasure, the pleasure of overcoming. Bring back bitterness into life! It's either a threat coming from the outside or a challenge from within. A group cannot exceed a certain size without changing the nature of the beast.
The women of such groups are also bond and guided by that shared essence. Their hierarchies are a reflection of the masculine one.
Those hierarchies can be part of bigger hierarchies. Bigger structures have a tendency to become unstable. The key is that the interaction between two entities within this super structure is based on boundaries. This is to say, there can be channels of exchange but the inner workings within one group are not to be interfered with by another group. It's an unstable equilibrium, it eventually falls into decay to be forged again at a later time, cyclical in nature.
In modern systems and environments the individual is forced into groups and dynamics, throughout his life, which haven't grown over time but which are rigid structures being populated by members of various kind, of in part incompatible essences, heritages.
New dynamics arise in such an environment. The other is being lied about. It doesn't exist on the outside because everything outside the structures is being assimilated, or tried to. Challenges within the group cease to happen. To challenge is to to ask "Who are you?" This is not of any value to the flock, a pointless endeavour for them. Instead of challenge, the element of other is now identified within the group where it is perceived as a threat.
The appearence of the hierarchy to the individuals is flat, it's what is being advocated - efficiency is on the decline.