Ive worked with well educated people from Africa, the Middle East and the Far East. They were very different in the way they dealt with business problems and the way they conducted themselves in meetings.
Same company, same mission, same degrees, but very very different appraoch to the same problem. If you were a betting person you would win almost every time guessing the race from the way they acted at work.
Things like logic problem solving, or how they dealt with non standard situations. Or how they could or could not bend the rules were very obvious differences.
For example Ive never seen someone from Japan walk across the road without the pedestrian green man showing – dispite there not being any traffic. Never mind cross where there is no crossing in place.