Top-down hirings for the sake of culture change don't really work, though do they? It seems like the inevitable outcome is exactly this, a bright-eyed, and then soon-disenfranchised new hire, butting up against an resistant and entrenched culture.
It's a big company the whole thing can't just be a frat house there must at least be some percentage of decent people trying to do a job that are now being told there is something wrong with them.
(Not to mention the whole idea of a remote worker involved in any sort of culture change is utterly absurd)