It's easy to scoff at radical left-wing projects of reconstituting human society on the basis of love or other forms of voluntary pro-social behavior; but one can equally ask how far any human society would get if it tried to operate without these motives. Opening John Ruskin's classic work of Victorian social criticism, Unto This Last—a work that profoundly influenced Gandhi and other social reformers—one may feel tempted to roll one's eyes at first with world-weary skepticism at his project of rearing a new society on the foundation of the "social affections." But Ruskin then catches one up short with his observations on a line from Adam Smith.
Somewhat unfairly, Ruskin quotes the great Scottish political economist—out of context—on the subject of what generally motivates people to be honest. In this passage, at least, Smith claimed that the chief motivator was the threat of being penalized on the market—after all, a dishonest supplier engaged in sharp dealing and offering shoddy merchandise would soon find himself without employment. While this might appear uncontroversial to most of us, Ruskin begs us to consider what would become of a society that treated Smith's idea of self-interest as truly the sole basis for human society. How long would any political community survive, he asks, that recognized no other reason for honesty than this?