Understand, crossnote, that those Jews in Berea whom you hinge your denial of the Roman Catholic Church on became members of the Church governed by the central authority of the apostles - led by Peter - in Jerusalem at the time. The same Church of the apostles which in the years that followed re-settled it's leadership in Rome with Peter, and exists there still today.
Satan attacks that Church with great fury, naturally, and always has. So if you are waiting for its leadership on earth (or any man for that matter) to set an example of human perfection for you then you will never realize the true wonder of the One, Holy, Catholic, Apostolic Church which was established by our Lord Jesus Christ himself and - despite the shortcomings of man - has stood for 2000 years and always will, just as our Lord promised.
"And I tell you that you are Peter,and on this rock I will build my church, and the gates of Hades will not overcome it. I will give you the keys of the kingdom of heaven; whatever you bind on earth will be bound in heaven, and whatever you loose on earth will be loosed in heaven.”
THAT is the authority on earth given to Peter and his appointed successors (and none other) by Christ himself.
Glory to God in the highest.