> International organizations (like WTO, WIPO [even if we think the copyright is too long, and most of patents are dumb, etc] various UN projects), free trade agreements and such are supposed to keep that "power centralization" in check (eg. with things like ISDS and so on).
Unfortunately, almost all historic international organizations (no matter if the UN, EU, NATO or anything else - hell, even the WHO!) operate on a fundamental requirement of trust and the assumption that there are no obstructionist forces and everyone largely plays by the established rules.
This fundamental assumption has been dismantled, starting in the early 90s with the collapse of the USSR... now we have the US and Israel blocking every investigation into war crimes (I do understand the reason though, given anti-Zionist resentments across the world), China not willing anyone to investigate what happened at Tiananmen Square or in the Uyghur concentration camps or with Covid, the Russians protecting the criminal Assad regime, Turkey fighting with Greece, Hungary and Poland blocking anything that could help refugees or hold their regimes accountable for corruption and a boatload of other bullshit.