People do care about currency stability though because if you walk into a store and buy one loaf of bread today for one unit of said currency and then you walk into the store and buy another loaf of bread tomorrow and it costs 10 units of the currency. People get annoyed. Now, if they walk into the store and buy a loaf of bread and it's one unit of currency today and then they walk into the store 10 years later and it's 10 units of currency, they might be willing to forgive that.