I get it, but - anecdotally - I know someone whose son was dying of cancer and the McDonald’s foundation absolutely helped them a great deal.

For charity by companies I agree with your position. But when a company will match your donation (which is given in your name) why not?

I also don't agree with those big name-things donations by HNWs. If you really want to give, why name the thing after yourself? And depending on the charity of billionaires is a sign of a broken system anyway.