You can only hold people to realistic standards of what they can be expected to do in any given situation. Nobody expects a hospital worker to follow-up with every person facing a problem they encounter in their work. But if you see clear evidence of sexual abuse and don't report it, then you are a piece of shit. In your situation, reporting it would be all you can reasonably expected to do because 1. You have no reason to think the authorities you are reporting it to have a vested interest in keeping said abuse quiet and 2. You don't exercise a huge amount of power in your facility as Paterno did at his.
Do you personally think Paterno did enough in this situation?
You're now talking about a host of different standards. What power did he have over a man that wasn't his employee and wasn't working at the school? He took away the man's access. He reported the incident to his superiors.
The point is many of can do more constantly. We don't because honestly, we all have our own bullshit. We have our own families and our own lives and our own responsibilities and we don't want to be involved in everyone else's.
I can say that I do my job, and I do, but can I do more? Yes. We all can, but we usually don't. We're human, sometimes in the worst ways. It's why people who behave selflessly can be so amazing.
Sadly, Paterno was just human. I'm sure he made plenty of mistakes, not the least of which was not doing more in this Sandusky situation. But it's easy to crucify a man when you put him under a microscope. Most of us wouldn't survive it.