Another perspective on the inevitable success of these decentralized systems is efficiency. The centrally planned systems are inefficient because they allow those in power to enrich themselves disproportionately. Simple allocation of resources in a more market-based system ensures success of decentralization in competition between these two systems. There is also the aspect of competition for methods of governance within decentralized systems that can further optimize outcomes for the participants.
I'm not trying to take away from the aspect of simple morality involved here. Having the moral high ground and belief in the superiority of your position should give users the courage of conviction that will bring us success. Belief in the righteousness of your cause can give you the persistence that will bring about victory. Just ask the Vietnamese.