I have similar experience with American's team work culture.

It is very powerfully and very productive. It starts with grow people by providing them all the opportunities they need to reach their potential. The philosophy is: the company can get the maximum benefit when a employee does the best job. When people are motivated, there is no need to push them because they will give 110% always. And last but not least, only the best minds can stay ahead of the game and solve the most complex problems.