I can't speak about meta specifically, but from my exposure "responsible ai" are generally policy doomers with a heavy pro-control pro-limits perspective, or even worse-- psycho cultists that believe the only safe objective for AI work is the development of an electronic god to impose their own moral will on the world.

Either of those options are incompatible with actually ethical behavior, like assuring that the public has access instead of keeping it exclusive to a priesthood that hopes to weaponize the technology against the public 'for the public's own good'.