A man was destroying his life, his family, and on a path to do harm to the university, and pretty much nobody stepped in until the event was about to become public...
LE's alcoholism was a couple of year run at the university, it really got out of hand the last year or so. I think in that situation you typically do let that go thinking he is going through a phase, photos came out the university acted. That is not that same thing as in 1976 having sexual assault of a minor being reported to you and replying. I don't want to know about that, I have a football season to get ready for. Paterno's last season at PSU was 2011 that is 35 years after! Allegations against Sandusky came out in '08, Paterno claimed no knowledge. Paterno was complicit in the rape of minors for over 35 years! Wrap your head around that.
Also most guys I know that coach at the college level enjoy their drink, as far as I know LE never was inappropriate with anyone. Yes getting drunk with college kids isn't ideal for a guy in his position, but lets not put LE even in the same galaxy as JoePa, Sandusky and Briles.