It's no corporation. He did not come to institutionalize religion or a relationship with Himself.
If that's what He was after, the OT system of the Law was perfectly adequate.
He's growing a body, His BRIDE to love and have a relationship with, not some indentured servant to perform for Him.
Of course Christ came to start an organization! He had a large group of disciples from whom he selected 12 leaders. He had a network of women who helped provide for the group’s needs. He had an apostle in charge of the money. He sorted out three apostles for special insight and visions and selected one for the most special leadership.
He prayed for them, had the Holy Spirit enlighten them, and gave them rituals and traditions and lessons they were to pass on to the entire world. In the Acts we see the hierarchy in full swing, and even Paul has to seek Peter’s approval of decisions. The apostles themselves, sanctified by the grace of the Holy Spirit, started churches in various areas (parishes!) all looking to the leadership of Peter. When Peter died, the apostles themselves accepted the leadership of his successor. It has been a living, far-flung organization from the beginning!
He instituted a real Church with a real organization, a hierarchy. He established a new order with a new message that clarified what was important in the Old Testament.