Democracy Doesn't Scale

Oligarchy is a form of government where political power effectively rests with a small elite segment of society (whether distinguished by wealth, family or military powers).

http://en.wikipedia.org/wiki/Oligarchy

The "iron law of oligarchy" states that all forms of organization, regardless of how democratic or autocratic they may be at the start, will eventually and inevitably develop oligarchic tendencies, thus making true democracy practically and theoretically impossible, especially in large groups and complex organizations. The relative structural fluidity in a small-scale democracy succumbs to "social viscosity" in a large-scale organization. According to the "iron law," democracy and large-scale organization are incompatible.

http://en.wikipedia.org/wiki/Iron_law_of_oligarchy

Democracy just doesn't scale.