I fail to see the problem, if you have more money than you could possibly use in a lifetime, why shouldn't that be redistributed through programs that benefit all of society, instead of whatever pet projects the rich person favors.
That person/family has shown some evidence that they're capable of investing money to generate an outsized return on that investment. I would tend to think they might be able to repeat that effect with the way they choose to reinvest the money, be it for societal value or charitable endeavors. I don't see evidence in balance sheets that governments have that same track record.
Society has made murder, theft, and rape illegal largely because of a fairly broad-based agreement that those are immoral.
Where there isn’t broad agreement on morality, I would prefer to avoid passing laws to regulate behavior and allow choice. (Roe v Wade/abortion being just one crystal clear case of this tension which I believe is generally best resolved in favor of individual freedom. I am free to follow my own morals where they are stricter than the law; I do not force others to follow them.)
Who decides that? The great and scholarly politicians we elect?
Sound familiar?