Reciprocity of valuing your time an energy which is limited in life, is a factor to motivate one to do something. If you do something for nothing, the reciprocal benefit is lacking, and this can be taken advantage of. At some point, repeating this one sided relationship will take its tole and the benefit for cost of time and energy is not worth it in the end. Money is one method of interchanging value, like time and energy, in reciprocity for both sides to gain.

Good post. Upvoted. Take care. Peace.