You really think Christ started a faith that was completely secret? Hidden for centuries until the Bible was printed for fools to interpret their own meaning on His Ministry??
The apostles went around starting numerous churches. The believers were never meant to be a large wealthy church. We are told "narrow is the path and few that find it." The false church in Rev 18 is described as decked in gold and jewels (wealthy) committing fornication / having relations with the kings of the earth.