I guess it's mostly a matter of what framework the society put in place. We incentivise economical achievements, optimisations, tech. The common theme is making wealth. As long as that's the case, you can't expect these problems to be solved. Humanity/societal frameworks have to start incentivising the right problems.
These so called billionaires have become billionaires because the society and economy are set up that way and they got good at this economical game.
These so called billionaires have become billionaires because the society and economy are set up that way and they got good at this economical game.