Well, I have some objections to atheism, really since a few months ago I have an incomplete text about atheism stored in my folder dedicated to controversial post.
On the other hand, it's interesting that you remind me about Gemeinwohl-Ökonomie, I checked my blog a few days ago, and I saw that I had written down that concept a few months back when you mentioned it, so I did research on that precisely this week.
In the past I spent a lot of time studying all the principles that sustain the economy, I would say that it is one of the things that I have dedicated the most time, my conclusion is simple, we can not have a moral economy by making a change in the legislation and in the economic system, simply fail, the dominant culture and ideas are more important than the normative and material structure of the economic system, is the fundamental reason why everything that is not the current system ends up failing.
Many regulations can be implemented to control the economy, but then the illegal market will begin to emerge, and these can only be stopped by the use of force in a systematic way, and that will sooner or later lead to failure.
My conclusion is that we must change culturally, we must impose idealism above materialism, then, we will willingly do things without taking into account our material gain, the economy will adapt accordingly to our moral actions.
In this publication, although I don't propose it directly, I propose to replace the idea of homo economicus with that of homo honoris, the perception of what it means to win and lose would change radically, the change in the economic system comes later.
Likewise, I see that it is more a question of will and whose mind you are a child of, how things will change in the economy.
Nothing that is reformed or pushed from above can really reach the individual. The ideal always wants to be found first in myself, before I question and change my attitude and my perception of life.
So a "yes" to what you say about cultural change. It's all quite an intimate affair, isn't it? Because to develop culturally means to develop personally at the same time.
I'll see if I can read the article you suggested in a different way than I did last month :)