Right away, though, I must make the parallel point, equally true-that you can't run human groups on love alone, either. Or on courage alone. It's the aloneness that's the problem. As Mary Midgley observes in her book, Wickedness, evil comes from excesses in the virtues. George Bernard Shaw said a similar thing in Man and Superman.
Love alone is no excuse for an imprudent and unjust and intemperate act.
Even, I am bold to say, in God's eyes. By contrast, the prudence-only behavior celebrated in economic fable is bad. Bad for business. Bad for life. Bad for the soul.