Decentralization Requires Involvement and Empowerment
Decentralization is preferred to centralization in many cases. But decentralized systems need to look at involving each individual at the decentralized unit.
To involve each individual means empowering the marginalized members of the community, so that decisions agreed upon would actually reflect the collective decision of the members of the community. Making such provision for each of the representations at the local level makes decentralization somewhat costly.
But there is the greater advantage of every individual being involved.