Ars had an interesting story, yesterday: https://arstechnica.com/health/2026/07/on-the-run-for-20-yea...
Looks like this guy was considered "proven," by his company. So much, so, that they didn't even bother checking his basic bona fides. Wouldn’t surprise me, if he was actually pretty good at his job.
I think a lot of the "proof" at this level, is Mastery of the Bro-Fu. If you can speak the right language, wear the right watch, and drive the right car, the key to the executive washroom is tossed to you, without a second thought.