The above is only true is a most self-centered way.
What of charity? sympathy? empathy? and Love?
Charity, for example, has a voluntary nature. Charity is indispensable to remaining free as a nation of people.
Freedom itself has a voluntary nature.
I do not believe that I have no obligation to another, toward another.
BUT, there is 180% of difference between having a personal responsibility to God, toward each other and having a public responsibility to each other, toward each other. Disregard for the former and excesses of the later both lead to tyranny.
Poverty is tolerable; tyranny is not.