Probably because they can earn good money for a few years and then move somewhere they actually desire? Personally seen this play out in Dubai, Hong Kong and S

Probably because they can earn good money for a few years and then move somewhere they actually desire? Personally seen this play out in Dubai, Hong Kong and Singapore for a long time. There's a huge contingent of knowledge workers who have no intent of putting down long term roots there. It's just somewhere to extract wealth from with high paying jobs and housing costs are simply another acceptable tax on that. Stay a decade, make bank, move somewhere where you can work at leisure. Isn't that the dream?