Bitcoin can't help it self, its doomed to fail because of Miners and PoW. Don't say non sense things, Token economy can help business and people because Tokens are hard wired to real assets.
It is not that bitcoin cannot be upgraded, core protocol is not the final version of the coin. PoW has its own disadvantages but PoS is similarly flawed.
Bitcoin can be a good store of value, there is no denying that fact, the only problem I can have with backing economy with BTC is the issue with volatility.
That being said - I would rather have bitcoin backing economy of a country that gold.