It was a theory propounded by a German sociologist named Robert Michels called "The Iron Law of Oligarchy". It states "that all forms of organization, regardless of how democratic or autocratic they may be at the start, will eventually and inevitably develop into oligarchies. The reasons for this are the technical indispensability of leadership, the tendency of the leaders to organize themselves and to consolidate their interests; the gratitude of the led towards the leaders, and the general immobility and passivity of the masses."
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http://en.wikipedia.org/wiki/Iron_law_of_oligarchy>
"This is why it’s urgent that we move toward authentic popular democracy. Short of the guillotine, we should enact full public finance of campaigns, universal voter registration and election-day holidays, tough privacy laws and strict limits on surveillance and search, etc. Of course, these kinds of things are often ridiculed as “process” issues that don’t capture the emotions and imaginations of voters. We can keep telling ourselves that until, pretty soon, there won’t be any voters at all.
The greatest danger lies in pretending that we have perfected democracy. Richard Nixon and George W. Bush came to power, and voters played a role, to be sure (less so in the case of the Supreme Court appointed Bush). But we ignore the pernicious, democracy-warping influence of big money and media bias and over-simplification at our own peril. Blame is also misplaced when we point the finger at “the people” – the Right’s ongoing blame of 1960s civil rights, anti-war or poverty protestors, for instance – instead of at the Robert McNamaras, Henry Kissingers and other plutocrats."