God uses many different people, not just one man. 20 For ye suffer, if a man bring you into bondage, if a man devour you, if a man take of you, if a man exalt himself, if a man smite you on the face. Men who become a law unto their own, add to the Word to make themselves to be more piest then others, are like the Pharisees of Jesus's day. For I know this, that after my departing shall grievous wolves enter in among you, not sparing the flock. 30 Also of your own selves shall men arise, speaking perverse things, to draw away disciples after them.
False leaders fleece the sheep instead of feeding the sheep.
The word of God says because of self glory. The ministry is always the Lord's and all men are servants in this ministry. The above verses show that the true leader from God is not going to create division. The Church in one body, one Spirit, one Lord, one faith, one baptism, one God. For they that are such serve not our Lord Jesus Christ but their own body, and by good words and fair speeches deceive the hearts of the innocent.