Hmm.
That's a viewpoint people can have anyway.
The obvious objection to that idea is that if your UoA is has arbitrary monetary policies
ie the measuring stick is always changing,
it's a shitty measurement of value.
A fiat UoA makes accurate pricing impossible.
So you can argue "that's wealth because its what we use to measure with"
but its still a shitty measurement.
The whole point of me trolling fiat maxis (the ones who think theyre hard money maxis) is to encourage recognition that a fiat UoA is NOT accurately measuring value.