He spoke to them openly. Peter took him, and began to rebuke him. 33 But he, turning around, and seeing his disciples, rebuked Peter, and said, “Get behind me, Satan! For you have in mind not the things of God, but the things of men.” 34 He called the multitude to himself with his disciples, and said to them, “Whoever want to come after me, let him deny himself, and take up his cross, and follow me.35 For whoever wants to save his life will lose it; and whoever will lose his life for my sake and the sake of the Good News will save it. 36 For what does it profit a man, to gain the whole world, and forfeit his life?
Doing the right thing only when you expect something in return makes a Pavlovian response but if we are motivated to have integrity, we do what is right because our conscience tells us to. the way to integrity is really doing something that honors God.