i would say most industries can't benefit from using blockchain technology.

i keep seeing people say it'll disrupt all these industries---healthcare, manufacturing, voting, etc---but i've never seen a convincing explanation of how. supposedly smart contracts can cut intermediaries out of supply chains because "traceability" but since it's impossible to eliminate trust at any point in the chain, it seems totally pointless. applying blockchains to voting seems disastrous. either privacy (and the idea of secret ballots) is severely compromised, or voter fraud will become rampant.

so far, blockchains are useful for decentralized money (decentralized implies permisionless, censorship-resistant qualities). even smart contracts are just a proof-of-concept at this point for real world applications.