Of course it is a form of love, Daniel. It is the best form of love, unconditional with nothing expected in return. However, such help is returned because of the natural law: As we do unto others so it is done unto us. No, this is not a Christian Law. It is Universal Law, according to the many 'spirtitually advanced' people who proclaim it. "Let go of the results of your actions," et cetera.
Generally, helping people - providing it is not too arduous - brings pleasure to the person who serves as much as it does to the one being served. This is why so many people are involved in volunteer activities.