I agree with you when you say that a truly democratic system could be achieved on a decentralized network. But in my opinion the most overlooked problem today is that the human consciousness, emotions and moral attributes have so degenerated that even in a perfect decentralized world we still struggle with the same old problems. That said means that people should focus more on there personality/spiritual training instead of any other subject. Right now we have the best technology ever build before on this planet but in the hands of people which can't even control there emotions, thoughts and beliefs. I wish for more clarity in every human mind.