Over to you, Jeff
Jeff Bezos: "The only way that I can see to deploy this much financial resource is by converting my Amazon winnings into space travel. That is basically it.
"I am very lucky that I feel like I have a mission-driven purpose with Blue Origin that is, I think, incredibly important for civilization long term. And I am going to use my financial lottery winnings from Amazon to fund that."
Or maybe something useful like, oh, sanitation and clean drinking water for billions of poor people, decent homes, drug rehabilitation for addicts, investing in greening and re-wilding to save endangered species and reduce global warming. Helping to eradicate nasty diseases like Polio, or improving levels of literacy amongst deprived children and adults. Health clinics in deprived areas, or maybe train people to provide counselling for extremists who would like to feel better about themselves (research described in New Scientist magazine shows that most right wing extremists experienced or witnessed serious violence as children and once this is dealt with they are much less prone to become racist. Also research shows that people who experience or witness serious violence as children are 3 times more likely to experience a psychotic episode as the people who didn't.)
He could sponsor deprived people to train in top or even middling universities or sponsor apprenticeships for genuinely useful trades.
He wouldn't even have to set up his own foundation as there are existing charities already doing these things which could use the money (Medicine sans Frontiere, Voluntary Service Overseas, The Peace Corps, UNICEF, Etc. Etc.)
Over to you, Jeff.