Excellent analysis. That's solid reference material for breaking down the structure.

So, to name names, can give a/some benchmark tier-one GODS?

What role (if any) do you see academic institutions playing?

From researching Jeremy Farrar, a lot of roads led to Oxford - my sense was, without fully-exploring it, that there were higher-ups than Farrar calling the shots. Oxford has a lot of ingredients that you mentioned - legacy - influence network - a desire to impact world-culture - plain-sight but not lime-light.

Someone who is well known, though rarely photographed, is Rupert Murdoch. I get that your Musks & Zuckerbergs may not qualify as tier-oners, but Murdoch would have to be in there, right?