The problem with the artillery barrage of scripture passages is that it’s more suited to an exchange of essays than to posts on FR.
There are MANY instances of one brother being superior to others. Jacob, Joseph, Moses, and David spring to mind.
And, just as feminists cannot distinguish between “equal” and “same”, Paul’s careful (IMHO) distinction between a variety of charisms yet the same spirit gets lost in these conversations.
It’s fun to read what Catherine of Siena wrote to the then pope. She shows every courtesy WHILE she tells him to man up.
In “Voyage of the Dawn Treader” there is a fine scene where King Caspian’s subjects remind him of his duties.
Paul indisputably says, in two letters, that SOME (not all) are teachers. That doesn’t relieve anyone or obstruct anyone from an intimate relationship with the Lord. Francis, after all, was not a priest. Catherine of Siena was a laywoman. And we acknowledge her for being hugely gifted and deeply intimate with Jesus.
SO, citations about the call, gift, and opportunity of intimacy with IHS do not touch on Catholic thought. We make much of our popes, but not as much as some Protestants think we make.
God’s Truth is all that SHOULD matter.
Your examples of brothers is not applicable in this dispensation. There is only one HEAD of the Body - Jesus. God has no grandkids, nephews, or stepchildren, only children who are joint-heirs with Christ. There is no religious monarchy in the Body of Christ, no matter how much men have attempted to create one.
You are in a heap of trouble when you elect/appoint a man in place of Jesus. Satan has a field day with religious leaders and organizations, leading them astray and taking their followers down with them. There is also the cult of personality that develops around religious leaders, that takes the focus off of Jesus where it exclusively belongs.
Yes there are teachers and apostles and evangelists called, anointed, and placed BY GOD in the Body, not by men. But they are servants, simply brothers and sisters in Christ. No matter how much education, degrees, accolades, and titles they might have, they are still humans and likely to make mistakes. Jesus will never let you down. He is Truth.