You're falsely equating inflation with actual wealth tax when they work differently (wealth tax does not apply to every saver, or to every saver equally), and then just blame wealth tax for the faults of inflation that it does not share. Really.

Since you need it spelled out again: unlike inflation, actual wealth tax will not take $16 from your Joe because in case of actual wealth tax, $800 is three or four orders of magnitude below minimum taxable amount of savings.