I guess you would feel better if you could work overseas, because Western companies are more mature and well-organized.
In order to reach that goal, you need to really work hard to improve your English skill, G/T is just one of many those skills. With G>700, T>620 and strong essay, you are very competitive for top-30 programs.
Maybe Mr, sui, you can think about attend CU's EMBA, whose ranking is whithin TOP 20 according Financial Times. You can know a lot of business elites accoringly if you enroll EMBA program.