The type person who makes O-9 or O-10 is one that just needs to always be working. It's no different than C-suite executives in any other field: they go insane

The type person who makes O-9 or O-10 is one that just needs to always be working. It's no different than C-suite executives in any other field: they go insane if they're not doing *something*, so why not do something they've spent 30+ years being successful at.