What you are missing was that except for the 1998 and 2002 allegations, (which so far we only know Schultz -- the head of campus police -- knew about, and no one else) there was no connection between the principal actors in this case. The only connecting link in all of them was Jerry Sandusky.
The 1998 incident was not actionable. The 2002 incident may or may not have been accurately described to Schultz. So there is no "corruption" or "extent."
I see. The winningest coach of all times knows nothing of pertinence about his team members.
OK, have it your way.
Paterno was simply an incompetent lucky fellow. One who happened to facilitate criminal behavior of his juniors unknowingly, for over a decade, due to his lack of wherewithal, and still nobody really knows about it. /s