Outside of a black swan event, humanity is not ever getting off this rock in any colonial capacity.
Space, it turns out, is a really shitty fucking place for life.
Elon's Mars fantasy is a red herring.
https://www.businessinsider.com/jeff-bezos-amazon-how-much-d...
Do you have any examples to the contrary?
https://www.washingtonpost.com/climate-environment/2020/11/1...
https://www.nytimes.com/2018/08/03/business/donor-advised-fu...
So, to turn it around on you, if your choice is to let friends know that you've donated $X to some charity which may cause them to also be more charitable, or to keep it private because you are afraid of looking tacky, you have made the choice that your self-image is more important than the extra money it may cause friends to donate to the needy.
BTW, it is a great book -- the most important book I've read in at least 10 years. One important point is his philosophy: all suffering is important, not just the people you know or who are local to you. Raising $30,000 for a fancy truck for a disabled person is unquestionably a kind act, but that same amount of money could save 20 lives in a developing country, or prevent river blindness in more than 100 children.
You don't need a PR agency to sugar coat four billion dollars... It's actually pretty generous and requires some level of good faith assumption on our part.
Honest question: besides charity, how can you possibly spend your wealth after it creeps past the billion or ten billion mark? Buy an archipelago?
Buy influence, then use that influence to drive policy changes. Unfortunately it is not always used the way we want, some examples are the Koch brothers and Robert Mercer
Theoretically you can use this influence to drive better climate policy, better civil rights, better social justice
It’s only “his money” in a non-factual basis where we are implying something akin to “he earned it and she didn’t”.
With that single donation he's done more good for Australia than I (also, I assume, you) will be able to with years of effort, surely that's worth celebrating.
Also billionaires combined donate a pittance compared to public institutions likes NIH or NSF, National Endowments and other grant giving orgs funded by the public. Really we should just tax them more and funnel the money to public grants, and also properly enforce antitrust, labor laws and environmental regulations to limit societal damage wealth extraction causes, instead of hoping and praying billionaires will sprinkle a little moolah where it matters every blue moon.
That does not absolve Bezos or other billionaires of their sins. But likewise, you cannot exclude it from your calculus.
Nope: It's the equivalent of you giving $690K. The value of money doesn't go down based on the wealth of the one holding it.