Well it is always worth a shot. The trick will be aaaaall about how well you craft your optional essay. It is an art form my friend! But if you can explain what happened in college, making it seem that you have learned your lesson, and showing that you have been SO successful at work and beyond ever since, it IS possible. HBS and Stanford will be tricky, but Booth, Haas, schools like that—they will look at you. Your scores are SO good, that they wont be able to ignore you. But focus on that optional essay—it is so critical for you!