Why aren't billionaires doing anything useful on Covid, climate change?

I think all billionaires are part of a cult of the 1% that want rule the planet so one of their rules is wiping humans being to get to the one golden billion human so they can slave it

One example, the Gates family is pretty active [1].

[1]: https://en.m.wikipedia.org/wiki/How_to_Avoid_a_Climate_Disas...