PSU is more than these men (even leaders), just like the 2000 year old Church is more than a few men (even leaders) who put their personal desires ahead of (and contrary to) the teachings of the institution.
By the way, the cite for your favorite quote in your user profile is wrong. Perhaps you meant Luke 11:46? I like Matthew's version better (Matthew 23:1-4). Either way, it is apropos to your statement about the moral authority of the bishops:
Then Jesus said to the crowds and to his disciples, “The scribes and the Pharisees sit on Moses' seat, so practice and observe whatever they tell you—but not what they do. For they preach, but do not practice. They tie up heavy burdens and lay them on men's shoulders, but they themselves are not willing to move them with their finger.
Thus, even Jesus recognized that you can separate the teaching (moral authority) from the actions of adherents (human failing and evil). Many people have personal problems with making this distinction today. It is an intellectual distinction, and emotions get in the way. If anything causes/perpetuates a taint on the degrees of your neices and nephews (and a block to Catholic faith), it is this inability to properly distinguish between individuals and institutions, this inappropriate extension of blame from individual to group.
Replies to: "Their degrees will only be tainted to the extent people paint with too broad a brush & hold grudges"