Couldn't help myself. The joke response to your post practically wrote itself.
Jokes aside, in that situation (I refer back to the OP now):
1) I see those that cover it up as accessories deserving of some sort of penalty. I also think it is one's duty to report suspected abuse (it is also the law as far as I am aware, but I recommend reporting it not simply because it is law, but more importantly because I believe it to be the moral thing to do).
2) No one wouldn't be in the wrong for expecting the Constitution of the organisation to be upheld. Provided that Constitution is a fair one that doesn't prescribe unfair discrimination or something of that nature.
3) I don't understand this point. Ideally victims should be compensated and the offender should be penalised. Unfortunately it doesn't always happen that way, admittedly the system is not perfect.
4) I suppose that depends on what the offender has done and whether or not those around him are prepared to forgive and forget. If it was child abuse I would not forgive and never forget. I would choose not to associate with that person ever again.
5) It won't. Not until it gets rid of the rot. Well... unless its goal is to be a thoroughly corrupt and untrustworthy organisation... then it will easily achieve its goals