Although you may have "brought down" your boss you then withdrew your complaint against him as soon as he resigned which then ended the investigation. It was then two other woman who came forward that did the heavy lifting of getting internal policies and procedures updated and revised to prevent the same thing from happening again. 

You had your eyes set on Aubut and taught him a lesson. I think that it is a little insincere though to now claim credit for changes at the COC.