A geodemocracy is unique because it is based upon a natural geometry, the geometry of Nature, Synergetics, discovered in Nature rather than made up by people who thought the world was flat.
The geometric design of the Geodemocracy concept not only sidesteps the usual problems of hierarchic government/organization but has characteristics not deductible by the parts considered separately.
That is... a geodemocracy is not corruptible.
This is a very weird idea for people who have grown up with the idea that 'a single bad apple spoils the barrel' and other such sad cliches. In all other organizations, one idiot hassler can spoil the whole experience and the results of the experience simply by hassling everyone. A charismatic powermonger can con everyone and get agreement to be put in a position of power where he or she can spoil everything, ruin the effort of a whole group. Jeeze, I've seen that many times, dozens at least.
A Geodemocracy prevents such a 'hassler' or 'powermonger' from influencing anything in the organization, and since there are no 'power positions', they cannot work themselves into a position to mess up anything. They are equal by position, and that position cannot become a thorn in the side of the democracy.
One of the CIA's most basic control strategies for breaking up groups is to infiltrate two or more agents into the organization and the agents help work each other up into positions of power, where they then start separating people into subgroups which oppose each other, eventually destroying the unity of the organization through internal disagreement. I've seen that done also.
There are no positions of power beyond each individual in the Geodemocracy, so this also has no effect at all. And there is no way any outside group, or even government, could shut down a large geodemocracy, even if it has no function as a government but is just an organization to do good among humanity and the environment. A Geodemocracy would likely do things the governments should do but don't, and being a benefit to any government pretty much makes that organization liked by that government.
The geometry of a Geodemocracy would judo almost anything that might corrupt it, the way steel is not damaged by wax, even hot wax. The characteristics of the materials themselves prevent corruption, and the interaction causes no harm. Human Nature is every way humans can be, but the geometry does not allow interaction with the aspects of human nature which easily messes up all the other forms of government or organization.