My larger point is there is a very big difference between dropping out of an elite institution just before the finish line because you think you have a billion dollar company on your hands, and just dropping out. Even if MS, Facebook and Google all failed Brinn, Zuckerberg, and Gates would still have been able to walk get a job probably. They didn't drop out because they failed out, they willingly left to pursue their ideas, and were otherwise top notch students.