Ahhh, ok. I guess I'm never sure how to take that. I mean, the Bible seems to hint that the Kingdom of God/heaven, or the Church, will be invisible. For example:
"Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you." - Luke 17:21
"Now therefore ye are no more strangers and foreigners, but fellowcitizens with the saints, and of the household of God; And are built upon the foundation of the apostles and prophets, Jesus Christ himself being the chief corner stone; In whom all the building fitly framed together groweth unto an holy temple in the Lord: In whom ye also are builded together for an habitation of God through the Spirit." - Eph. 2:19-22
But certainly some Christians believe that Christ founded a visible Church, with a hierarchy, apostolic succession, etc. I guess you're talking about those who make more out of the invisible part, causing an imbalance. I'm not really sure when it came about. I suppose some early break-away groups from Christianity had that element to them. It probably didn't come into it's current popularity until the last few hundred years, though.