Decentralization is the best form but none of the power structures hasve ever moved in that directions. Those who seek power seek more power ultimately resulting in Centralization of power. It applies not just politically but even Religions do the same. The Crony Capitalism is a result of such attempt to collect the Capital within a small pool of people. Communism says it ill fight against this small group of people and share the capital but it stops midway. Both Communism and Capitalism on paper is about decentralization but in reality is about Centralization because Those who seek power and money are never satisfied.