Yes this is the answer. No single persons should have this much money. Instead collectives like governments, corps and holdings should have the money. By doing so the governments are also able to control money flow and restrict unethical use cases.

But this would require governments working for the people, people voting parties that are doing stuff for them and not for corruption. Also media outlets need a proper source of independent income to that opinion is not monopolized, which is the hardest in my opinion, because how most outlets are making money is by writing emotional articles so that they are clicked.