The Duke Lacrosse case is one of those interesting intersections between gender and race which makes this whole topic so complex.
On one hand, you have the “women are always liars” myth, on the other hand, you have the “black men are rapists” myth, and things are never tidy when those two collide.
That’s the thing.
Sexual assault is usually about power, and reinforcing the inequality of power between two groups of people or individuals. That’s why it happens so often in places where social standing is so vitally important. The powerful have both a disproportionate platform and a disproportionate propensity to reinforce their power. In the end, not only are the powerful probably the most likely to commit sexual assault, but when they “get away with it”, they also serve as a symbol of “I got away with it, and you can too.”