Anyone remember the Duke rape case? There was a DA that was so determined to get his case he ruined tons of lives, for nothing. There are plenty in the power positions that want to have "their big case" that everyone can associate to.
I don't know the facts, so I can't judge on either side, but it wouldn't be the first time someone with a law-degree really thought they had someone, and had just enough power to ruin their lives just to get a plea. And also not the first time someone has done something illegal and maybe gotten away with just a slap on the wrist.
Personally, I think there are bigger problems to solve, and just shows you how much of a waste the overall system is. What good has come of this result?