It is a more common driving force in the dynamic of human life than self interest or the motive for profit. Giving is the way with us. It is not only the most common thing we do, but it is essential to our own health and our own happiness. We are made better by it. We thrive as we do it.
Charity begins at home.
To answer that question, we must bring up politics for a moment. Politics is necessary here because it is the most authoritative form of community here in this life. All of the most important things we do together are powerfully affected by politics. Politics has a monopoly on force. If the law makes a statement, it settles the matter.