You are exactly the type of person I'm talking about :\
Crypto is not the only use case for blockchain.
Blockchain can be useful in inherently trusted, closed ecosystems.
Depending on the use case, proof doesn't even need to be anything more than a valid certificate (not work, not stake)
Consider a bank that develops its own blockchain ledger for internal use only, replacing their branch ledgers (which require daily reconciliation and propagation).
An immutable, distributed ledger has plenty of valid, valuable use cases without looking like crypto.