Yup, this model is the point. It is necessary to counter act the ability of wealth to accumulate. The alternative is allowing inequality to get to the point whe

Yup, this model is the point. It is necessary to counter act the ability of wealth to accumulate. The alternative is allowing inequality to get to the point where nobody has any money, old money is deemed worthless and we start again. Wealth holders actually have a vested interest in money being usable.