If I were Satoshi Nakamoto, I would never reveal my true identity. And there is no chances that the creator of Bitcoin will appear in public. He understands that it will only endanger his life and the love of his life, his family. We must remember that Bitcoin was established to protect the security and anonymity of everyone who transacted or traded with another person. We are aware that there are many people who take advantage of us because we have a lot of money. That is undoubtedly what Nakamoto is thinking before he vanishes.
1M BTC ~ 50B USD, not a large amount of money compared to billionaires like Elon Musk or Bill Gates, so safety is not really an issue if you really want to appear.
I think when BTC is so famous and becomes an issue that many presidential candidates need to be transparent about when running for election, you may need to pay more attention to your legal issues. I believe that if something could be done to control and remove BTC from the economy, governments would take action to protect fiat.
You have already answered the question you asked. And what you said is what Satoshi Nakamoto is doing as well if I am not mistaken. Satoshi Nakamoto has shared more than 1m BTC to charities by opening or creating the bitcointalk.org forum for the poor to participate and get stipend for participating in signature campaigns. That is a great help he has done. Because that can remind me of the statement that "teach him how to fish instead of giving him a fish".
I like charity ideas, but sharing them through a signature campaign on crypto forum doesn't seem really effective. Many people do not use forums, do not have the ability to interact and receive the necessary money for their lives. That means the BTC may never reach those who truly need it. I think some professional charity would be suitable to undertake this work.