Well, certainly we judge too easily and too often. Rourke, you're correct on that. Though I'm not sure there's more judgmentalism here on PH than elsewhere in today's society, If anything, there's less than average.
That doesn't make what we do right. It's never a defense to say "others are worse" or "everyone does it."
I don't know if all of us are evil or capable of evil acts under the "right circumstances". I do believe we are all fallen, but that's not the same thing. And because we are fallen, we ought to claim righteousness we don't have.
But we can still condemn evil acts. What Sandusky did was evil. And, IMO, what Paterno, et al, did was even more evil.
Does that mean Sandusky is an evil man or that Paterno is a more evil man. No. Only God knows that. Only God has the ability to rank our evil characters.
Unfortunately, however, part of our being fallen is that we're always going to be susceptible to the sinful act of judgment when we encounter acts we consider especially evil. Should we get vitriolic toward Paterno, call him names, tell him to burn in hell? No. (Well, as a Christian, I shouldn't, anyway.) But part of being fallen means that not only will we be tempted to judge where we shouldn't, we will.
So, IMO, we should no more judge others judgmentalism than we should judge what they are judging. Point out, again that they are judging and taking God's task for their own? Yes. Refuse to associate with them, that, too, is within our power. But set ourselves above them? No.
There's Jesus. And there's the rest of us. And that's the only "relative degree of character" that should matter to us.
IMO.
And do not be conformed to this world, but be transformed by the renewing of your mind, that you may prove what is that good and acceptable and perfect will of God.
Romans 12:2 (NKJV)