I keep running into the issue that blockchain seems to have very few legal uses that a centralized database isn't better for. Remittances seems to be the best u

I keep running into the issue that blockchain seems to have very few legal uses that a centralized database isn't better for. Remittances seems to be the best use case with actual usage. But that doesn't really need anything. Every thing else seems like tech demos with no real world application or ways to do illegal things more efficiently. Is there a use case someone really likes that blockchain seems like the best tool for the job?