Many exceptions are possible. Democracy will grow to wider basis when the consciousness of a human being enlarges. Democracy must enlarge also because the democratic control of the technically developed world is necessary. Possibilities of dermocratic progress depend crucially on the organizational model. Principal guidelines of developement of formations of human communities as geometrical figures.
Tribes elect their leaders people with most competence for leadership.
The basis of the system is democratic. The main form of ownership is collective. The system may be called pre-communist. The world of tribe communities may be described as an archipelago of separate pyramides standing on their bottom. Tribe communities form sates, in which one leader has got all the political power.