You can quote scripture all you like. If none say what you say it says the effort is vain. I realize you, and all Catholics, believe it says the priesthood say it says, and, what the priesthood says what it says is for the benefit and survival of their church.
They can not possible see it any other, as they are invested in the power the church gives them. That's not my problem; it is yours.
Superstition? Rituals are superstition. All that is needed is faith and belief, and those are found in the hearts, or not found in the hearts, of individual men.
The Catholic church, from my observation, is packed with scripture less superstition, not unlike those practiced by Wicca. Pardon me if I read what Christ says and hold to Him and His Father alone. It is what He says to do.
I do what He say, not what a group of men say.
You are not incorrect in your condemnation of "work of man", but you need to apply it to the likes of Luther, Calvin, and the dime-a-dosen self-made pastors in various Protestant communities of faith today. They twist the scripture, that is if they read it at all, to your satisfaction.
Oh, I most certainly do. I have seen and visited, and grew up with, many churches which are merely painted corpses. It gets worse as time draws on. . .