So many people miss the point of blockchains that they forget that there is an actual utility for immutable ledgers, that is, to make sure funds (e.g. taxes) go to the places that they are claimed to be going to. Right now we pay our taxes and that's that - we don't even have a way to confirm that it is going to the extremely bloated military-industrial complex in the way the budget is written.
Will the government ever allow something like that? Most likely not, but it doesn't mean that having complete traceability for funds is a bad idea at its core.