I could think up other reasons... but when have you ever gotten the sense from the Vatican that they think they should comform to the normal rules of decent society?
Um like stop feeding people the body of a man while wearing a dress
The curch has been a powerhouse for the past 1500 years the most powerfull organisation for most of that time possibly still are, conforming to what plebs think just isnt that high upon their list of things to do.
Making things like this, or child abuse, go away is.
They also worry allot if sperm goes to waste, condoms are sin and stuff like that, and gays are evil stuff like that is way more important then a preacher who molests a child, or a priest who preaches raping women that had an abortion.
Christianity, One woman's lie about an affair that got seriously out of hand