Transnational elite engaged in a homogenized culture at a higher plane of consumption (french wines instead of budweiser, international cuisine instead of mcdonalds) is called

I believe the answer is: Global metropolitanism

This type of behavior could only happen in a country in which possess an abundant resource for the citizens.

Beside material consumption that mentioned above, the individualistic way to treat other people within the social group could also be considered as a sign of Global metropolitanism.