I find it is a systems-question, not a political-question,

and I think the correct answer is to have a publically-owned portion of any market, be public/not-for-profit, as a means of enforcing honesty/integrity into that market.

IOW, you don’t nationalize every damn thing, because institutional-mentality is every bit as evil as corporatism-psychopathy-machiavellianism, only different in style…

( anyone who isn’t understanding that … hasn’t tried living & working among it, either in Washington DC or in Canada’s Ottawa, or in whatever England’s equiv, the EU’s equiv, etc. )

you instead make certain that a portion of the oil industry is national, a portion of the (whatever) industry is national, etc, and if there is huge discrepancy between the nationalized-portion & the private-portion, then you go in with criminal-investigators, after the C-suites of the corporations used to gaming the country’s economy.

Putting 3 barracuda in the fish-farm-pen, in order to make all the survivors in the pen be fit is a related concept: same principle, different domain.

You put some not-for-profit operation into the functionally-cartel-domains, & you use those “barracuda” to force integrity into those specific domains.

Do it strategically, not just reactively ( comms, transport, energy, food, journalism, etc )