One fiat coin being worth more than its face value doesn’t matter if that entire system is going to zero anyways.
This is exactly the type thing we are opting out of with #Bitcoin.
The entire premises is 1 BTC = 1 BTC and there is only 21M of them. Ever.
If we allow flexibility on that, we might as well just hard fork it and remove the 21M supply cap (since 1 BTC can sometimes be worth more than 1 BTC).