People are clustering into networks by function and by fancy. Companies are becoming more important than countries.
Networks make things happen.
It's not where you work or live but who you know. The reason people lend themselves to 'clustering' in market research is that they wish to differentiate themselves. You just draw a circle around a bunch of dots on your market segmentation map and proclaim that a target market. They don't like one another and they won't like you for tying them together. Political correctness is a by product of diversity, not it's antitheses.