Why is contribution (helping) important. Here are some reasons
As you yourself cannot survive without other people helping ad contributing to you and your welfare, the same applies, you will not be fulfilled in your life without contributing to others. No baby can grow on its own.
Why do you think even after you become an adult and move house, with a life of your own, your mother still makes you food and ties to brush your hair…Yes because she cares and yes she is a mother, but ultimately she wants to contribute to your life.
Contribution is one of the most, if not the most important human need.