>Sure, they have a passport - or multiple - but they'll emigrate to another country without blinking,
You forgot one variable. Women have a mind of their own.
Switzerland tried to take London's Hedge Fund Industry. The wives and kids hated the lack of things to do compared to London.
Same with Footballers. If a football player or manager signs for a club in a unattractive location, the wives may stay in the previous City.
Right, and let's face it, the ultra wealthy are not really known for their "family values" or their dedication to their children.
They'll provide them with financial support and that's where their relationship often ends.
Their loyalty is mainly to their wealth and status, everything else around them is "stuff" that merely exist to fulfill the goal of increasing profit.
I'm sure there are exceptions but I'm making a simple observations.