Paul wanted the Corinthians to see their leaders as servants; subordinate and responsible to God, their Master, who will judge them in the end. The Corinthians were not to take pride in any one spiritual leader and to walk in humility. This would be the cure for the division that existed among them.
Humility was a difficult concept for the Greeks because humility was believed to be a trait of a slave and a sign of weakness (Plato Laws 6. 774c). Paul called on them to "imitate" him as an example of humility (4:16) and to listen to his spiritual child, Timothy, who would show them how to walk in Christ Jesus.
The Corinthians thought they were "hot stuff" like the church in Laodicea:
Because you say, “I am rich, and have become wealthy,
and have need of nothing,” and you do not know that you are
wretched and miserable and poor and blind and naked,
Praying we can all walk in humility and dependence on God today realizing we are nothing without Him!
We are nothing without You God. We repent of our pride. In Jesus' name, who humbled Himself to the point of death on the cross. Amen.