A trivial answer is that they could afford the best medical care. On the other hand, they aren't that old. I will be 74 in a few months and am still reasonably active, although getting up in the attic through the trap door is getting harder. If the real question is "why do they seem to appear on CNBC so often?", the answer is they don't. Certainly not out of proportion to the host of younger fellow barracudas who are interviewed there every day. It's a litle like the awarding of Nobel Prizes: their appearances occur many years after they last did anything indivually creative. Anybody who has accumulated a few billion has surrounded himself with aides de camp who do all the creative work. With that and a lot of money, it is possible to stay in the spotlight long after the creative juices have stopped flowing. If they were merely old and still greedy, but not wealthy, you wouldn't see them on CNBC, because what they do in their dotages is attempt to influence business through money alone. They appear to be largely driven by a chance to get even with people in power positions against whom they hold a grudge. In some cases, the contol of a corportation means no more to them than an opportunity to spread their own political views (again not fresh views but those remembered from earlier life) through the power of these corporations.
Forget about them. They contribute nothing useful to the real world. They are, for the most part, terminally boring - as I sense I am getting to be, by the way.
