> I can't imagine not being willing to move to any first world country that my senior executive spouse got transferred to -- as a senior corporate executive they've have a ton of resources at their disposal to make the move as easy as possible.

I can see it easily. After move, all your friends and all your life are far away. You have to change habits, language, adjust to different culture. You are very likely to be super lonely most of time. And you loose actual support network where you live. You can get some paid one, but that is something different. If she worked or had other ambitions (entirely possible she did not), those are likely gone after the move.

Many people like and have build their lives. And many if not most don't want to uproot and change everything.