if bill gates or mark cuban or even jeff bezos gave a shit about anything besides themselves, they would give away 99.99% of their own wealth to climate orgs etc, they would break up their own monopolies, and they would fight like hell to tax billionaires out of existence
they actually have the power to shore up democracy and possibly reduce the scale of climate chaos faced by future generations, but its testament to the nature of billionairism that not one will go for broke and use it