Researchers from several institutes worldwide recently developed Quarks, a new, decentralized messaging network based on blockchain technology. Their proposed system could overcome the limitations of most commonly used messaging platforms, allowing users to retain control over their personal data and other information they share online.
I don't think running an election on a centralized database is a great idea. I do think it's a way better idea than doing it on a blockchain, which has all the problems a centralized database and several more besides.