Technically this is true, since these organizations often operate as tax-free entities under the government of the country in question, since they seek to make the world a better place.
A voluntary organization is one in which people have free will about joining or not. These organizations tend to be nonprofit (otherwise, being employed in it would be more common), and they tend to be created in order to pursue a common interest. This is the motivation that people have to join. Voluntary associations are important parts of our communities. They often deal with matters that individuals neglect, and they also constitute an opportunity for people to interact and cooperate.
