Imagine there's an organization that gives children something to do after school, like sports, games, school tutoring, and so on, so that they'll be in a safe place until their parents come home. Imagine one of the staff ends up raping one of the youths, and when the higher-ups hear about it, they start trying to cover it up and move the offending member to another district where no one knows about the incident. Imagine that they've been doing this sort of thing for decades in an effort to maintain their good reputation. Imagine that they've been caught. They belittle the crime as "gossip" or a coordinated attack by one of their competitors.
Would you consider it wrong to investigate the cover up, even if it leads all the way to the head of the organization?
Now change the organization to the Roman Catholic Church, and the head of the organization to the Pope. Suddenly, what should be absolutely clear to anyone with even a vestigial sense of morality gets muddled with people claiming that the organization is above mortal law, or that the organization's reputation is more important than preventing rape.
I only want some rapists and their co-conspirators brought to justice. There is no religion involved in that sentiment. It is the religious anarchists who want their group to be above the law who bring religion into it. They want the governments of the world to be accommodating and deferential to their group. They want special privileges. They don't want equal enforcement of the law. They want all this because their religion says their leaders can do whatever they want: The only restriction is whether or not they need to cover it up to maintain a facade of morality.
Religion deserves absolutely no special privileges. Everyone must be equally subject to the law.