Healthcare in the United States is perfectly designed to take your every last penny in the last 6 months of your life. If Chuck Feeney isn't actually broke today, there is a fair chance that he will be on his death bed.
So of course his billionnaires friends will bail him out in the highly improbable event he should really need the money. The level of networking he reached means he doesn't need to spend a dollar until his last breath if he so wished.
Aren't you forgetting that that he already "lost" the vast majority of his wealth? If he actually cared about the money he would have given it to his children. If he loses his last $2 million on healthcare he probably wouldn't care.
Won’t pay for personal in-home nurses either.
But 2 million should buy him plenty of elder care. I would have kept 10 million just in case.