All these cool "save the world" school projects exist because the current people running the world are deciding what is and isn't a priority and haven't fixed the problem in question; When these students grow up and go on to work for those same people, we are shocked, shocked that it isn't to do more unprofitable school engineering projects.
Instead: Finance industry stuff. What we really need, and by we I mean the people in charge who are obsessively keeping score of imaginary numbers in an account.
Unless the whole world was to demand the same standard of living (which is impossible), or global trade is limited, there will be nations where the wealth of the average person is on the decline.
Rebuild into socialism?
Rebuild into communism?
Reset into early stage capitalism (lack of regulation and all)?
How do you know that those systems won’t also have their own late stage failure? Case in point, the NHS right now.
(Edit, posting too fast: To the person below who suggested 90% tax rates; the US never had those rates. On paper they did, but they had more and larger exceptions than now, to the point the effective rate never exceeded 45% anyway. This is also why the massive cut was politically palatable - it was cutting the rates to closer reflect the reality. At no point did the US ever have anything close, or even half close, to 90% effective rates.)
Your question is coupling a matter of our policy preference, our tactical planning to arrive at that preference, and a hypothetical predictive model. If like some supervillain I had come up with a satisfactory answer to all those questions I would have enacted it twenty minutes ago.
I strongly suspect it's a variant on capitalism that:
1. Recognises that some industries (utilities, healthcare, etc) are not well suited to market provision and are state funded. i.e. the sort social provisions that many of the nordic countries have.
2. Recognises that extreme wealth inequalities invalidate the key principle that capitalist economics is premised on (that the market value of a good or service closely approximates it's societal value) and therefore imposes much stronger progressive taxes on very high earners to effective cap how much wealth a single individual can control.
> early stage capitalism (lack of regulation and all)
High tax rates (90% in some cases) and all
I think this wouldn't be bad.
What you've described - the need for people to have autonomy, value, and ownership over the work they do - is the core tenet of Marxism.
Capitalism seeks rent from having capital, so the obvious optimization is to squash the ability to demand higher wages (original Marxist argument about "ownership of means of production" was how big capitalist controlled access to machines you needed to the work, thus being able to depress the wages)
Suppression of wages is very much a feature of capitalism (the company's mission is to acquire capital for shareholders; technology that lowers costs by reducing the need for labor, or reducing the payment for labor, is a goal); whereas socialism holds that those who do the work should benefit from their labor (workers should own the means of production).
A "socialist" company in the U.S. would be an employee-owned company or a co-op (like REI) though they would never call themselves that because Americans don't understand what socialism is (and have been taught that it's "evil").