Some ideas have been coalescing and evolving in my head about Kakuzu, just some thoughts I felt like sharing, perhaps not as interesting as I find them, but for whatever they are worth..
A village needs heroes. A figurehead to pin hopes for victory and rely upon as a shield from harm. To admire and to idolize and to trust in. Someone to keep the faith and embody the ostensible morals of the society.
A village also needs its monsters. For the censure and for the blame; to take the fall. To represent the viciousness and brutality that can't be condoned but nevertheless takes place in order to achieve supremacy. Someone to hate and revile, who can be stained with the atrocities for the collective. To shoulder all the failures.
Means to and end, tools- an unsympathetic utilitarian assignation of roles.
It isn't hard to imagine that in playing one of these parts, during the act of being one of these archetypes, the actors even adopt traits of what they are named to be. Furthermore, that having faith in the ones who have faith in them provisions a base of support upon which to achieve feats beyond what their own strength alone could allow. Propelled into triumphant and glory or pushed down a path of destruction.
Bravery. Callousness. Loyalty. Avarice.
It takes a strong man to be a hero; it might just take a stronger one to be a monster.