There is joy in serving those who cannot return the favor!
Jesus has called us to be like Him! So, we would do well to read the Gospels to see what Jesus spent His time doing. When we read through the New Testament books of Matthew, Mark, Luke, and John, we observe that Jesus spent a lot of time helping others. His heart, moved with compassion, served others.
Matthew 20:26-28 (CSB): "...whoever wants to become great among you must be your servant, and whoever wants to be first among you must be your slave; just as the Son of Man did not come to be served, but to serve, and to give his life as a ransom for many."