Nobody's able to shut down a sufficiently decentralized system. Mainly, this benefits financial applications like cryptocurrency. If you look around, you will find there is not much incentive for people to use blockchains to solve other types of problems.
If there was no use for blockchain outside of cryptocurrency, then Amazon would not have created Managed Blockchain and IBM wouldn't have made HyperLedger Fabric. Banks in particular like them, but these are just buzzwords and I don't know why they would be interested in such tech.
Banks like chains of hashes which make it easy to verify stuff. Banks do not like decentralization. Banks will never support cryptocurrency as it competes directly with their core function.