You're technically not wrong that wealth can mitigate attacks on your freedom. But in order for everybody to financially maintain their other freedoms requires a degree of economic freedom not afforded by basically any country on earth. Instead we mostly have managed fiat currencies that are continually inflated, vacuuming real wealth towards a politically-connected center, and making it so that only a fraction of the population is ever capable of amassing enough wealth to buy freedom. So your argument is a bit specious in the world we actually have, and ignoring that it falls apart is a recipe for justifying oppression.

Coming at it from another direction, I'd say that government guarantees of freedom are essentially non-fungible assets that resist the ability for lopsided/captured/coercive markets to financially strip them.