Iknonoclast,
I agree with your definitions of formal and real systems, but I would add to that complete/completed systems. Three distinctions is always the best way to look at and discern matters because it assumes an integration of opposites which results in a more unified, complete…and third and distinct reality. It’s more dynamic and open ended/open minded.

You could call formal systems pragmatic systems, real systems scientific systems and complete/completed systems wise systems. Pragmatic systems like we have today in economics are problematic given the fact that man is basically good but flawed and without continual vigilance against such flaws its devolution grinds to an unhappy result. The pragmatic DSGE/neo-liberal system would claim to be both a scientific and complete system, but that emperor of course has no clothes on. Scientific systems are definitely a step up in that there is more data and mental rigor involved and so another level of completeness. But science, unless it is very good as in open minded science (and the signature of scientific breakthrough is always a higher and more complete integration and unification) is not sufficient in and of itself….because it is not a completed method or ethic. And that is why wise systems are necessary if we want actual and complete answers because Wisdom is the integrative process itself and an ethic of continual and complete integration is what is required.

So the question should be asked, “What is the epitome of Wisdom?” The scientific and objective study of the world’s major wisdom traditions would conclude that it is the oneness of Grace/graciousness. (Buddhist satori-kensho and Hindu atman are pointing at the same oneness concept and experience, Christianity has no claim on complete and exclusive truth.)

Then if we ask what are the aspects of Grace/graciousness we see that among its many aspects are sovereign, abundant and additional self control/creation of money (MMT), continual temporal/structural and systemic financial presence as a bulwark against dominance and the inevitable change that occurs in the temporal universe (Public Banking) and Gifting directly to the individual and within the system in order to have complete policy follow through and empowerment of individual freedom and systemic free flowingness (Social Credit). Even disequilibrium theory begs the question: How is equilibrium created? which would be integrating the reality of disequilibrium/continual flux with policies that effected balance, equilibrium and flow which not coincidentally are the major aspects of both Grace and the classical and correct goals of economics.

So for the sake of all of us in a troubled world where modern and utterly destructive weaponry is also a reality we would be wise to integrate all of these leading edge theories into a movement that could herd the entirety of the political apparatus toward such workable, scientific and completed policies.