I was pointing out that if a "value" of some kind or other monetary variables could be linked to a flux , it could quit this aurea of "beauty" style structure/concept.

I am not saying it is generally possible to do it. and I agree with you on that.. but I must say that some close or reductionist definition of those variables in certain conditions could be obtained. Or at least I see it possible. The problem is that no serious analysis is done..  not that I know.. the only thing that only comes close is the general analysis of international trade.. and even there when you have a bunch of possible definitions and a lot of data to construct it, well it turns out it is extremely difficult to quantify its effects on other parts of the economy. But in principle I could see a more fundamental economic theory where variables and fluxes do have to do with some economic realities (though only parcial)...

But the status of economic theory nowadays, except for some counting exception, is that it does not have any relation with Reality (as you like to say it).

A pleasure

I therefore claim to show, not how men think in myths, but how myths operate in men's minds without their being aware of the fact. Levi-Strauss, Claude