I agree with you when you say "Bitcoin the system and the blockchain is brilliant." this is a brilliant misdirection like when a magician distract your attention to hide the real trick.

Why do you want to rope the value of money to something else than trust ? I know this is low tech and very old but a trust based system can work even for the digital economy. Of course to work properly a trust based system need some conditions which are not met today : transparency and dissuasive sanctions if someone cheat.

I think we need to upgrade our financial system but we need more transparency not more opacity.