Money is just "the relative value of things and services". Whatever system put in place to measure relative value will be gameable, and will also have many legitimate winners whose win lots of people don't understand.
No, the relative value of stuff is independent of money, certainly of any one currency.
Money facilitates exchange. Adam Smith argues this has primacy: "The sole use of money is to circulate consumable goods." Wealth of Nations.
Other authors argue for characteristics. William Stanley Jevons properties aren't bulletproof in my view, but are a good departure point: utility and value, portability, indestructability, homogeneity, divisibility, stability of value, and cognisability.
Money facilitates exchange. Adam Smith argues this has primacy: "The sole use of money is to circulate consumable goods." Wealth of Nations.
Other authors argue for characteristics. William Stanley Jevons properties aren't bulletproof in my view, but are a good departure point: utility and value, portability, indestructability, homogeneity, divisibility, stability of value, and cognisability.
https://archive.org/details/cu31924013816172