The logic is usually that decentralized system allow greater innovation, faster development, third-party integration. By taking no centralized control, allowing

The logic is usually that decentralized system allow greater innovation, faster development, third-party integration. By taking no centralized control, allowing everyone be partly owner of the network, they will have much greater network effect than the centralized counterparts. The analogy is usually the free internet vs proprietary CompuServe, AOL, Prodigy systems.