Blockchain is like fire or any other technology in hands of human. It can be either used wisely for good or misused to abuse and suppress people. For example, the original idea of bitcoin whitepaper is no longer the real idea of bitcoin. Was it said to be manipulative and used for enriching exchanges and major holders? Of course no, but it is! The same situation with blockchain usage: it CAN be used wisely to record people's data and then apply to it fast when necessary, but the question is, will people be willing to trust blockchain? Too much controversy nowadays to predict the way blockchain will develop.