Even history is evident every society faced it's dark age not due to lack of resources but because those resources were only utilised by and for a selected few. Democracy was supposed to be a solution but eventually paid media came. In the age of IT open source was supposed to solve it but their to people develop their own software based over those dependency which eventually lead to empowerment of few.
But this can't happen in blockchain cause by default they are supposed to be open source, so it means anyone can have the contribute to a project help in development or if they like even give it a particular direction. Still there are coins like Stellar(XLM) and Ripple(XMR) which somehow had proprietary software in them. So would it still might be a possibility that we might see centralisation of decentralisation in future?
RE: Community Forks - Theory vs. Practice