> Sales tax is a joke to the very rich and powerful. A guy with million dollars does not have to spend 1000x more on products and services than a regular guy with 1000 dollars. He uses that big money in different ways that do not get taxed by the sales tax.

They literally do spend a lot more of products and services than a regular Joe on the street, a sales tax would be taken at the point of purchase. Flash cars, fancy furnishings etc don't just come out of thin air.

> On the other hand, inflation taxes every positive-valued bank account roughly the same.

Inflation wrecks (the typically meagre) savings of regular people. It does not affect the wealthy who will have diversified investments and that will include things that are a hedge against inflation such as (but not limited to) precious metals, overseas investments etc. etc.

I don't wish to be rude but you haven't thought this through.