1) Crime networks at universities are powerful. If you're at an elite school, whistle-blowing will almost certainly cost you your career, if not more.
2) Trusted sources with both clout and insider knowledge will generally advise you to get out with your hide in tact, and let sleeping dogs lie. That is the strategy I'd also advise to anyone who is not independently wealthy and has a powerful network of allies.
3) Even indication you /might/ whistle blow is enough to trigger blow-back. Be discreet. In particular, don't use university IT equipment for either personal use, or anything related to the situation. If things blow up, the university controls your data. That can give an incredible information asymmetry, as well as leverage.
... and be aware things will get better. At the time, it seems like the world. A few years later, it's old history.
These things won't change without systemic change. Unless universities adopt transparency measures, accountability measures, compensation limits, etc., we'll continue to see corrupt crooks in the admin. And universities shouldn't be able to use NDAs, non-disparage, etc. agreements to cover this stuff up. Simply no.
It's like standing up to a police officers. If you do it, you might get your head blown off. If we change the system, you might not need to worry about getting your head blown off.