In a recent editorial about the growing challenge to publicly state a conviction about biblical sexual ethics without being considered "intolerant", Christianity Today offers this historical tidbit to consider in terms of strategy.
Emperor Julian the Apostate (361-363) complained that Christians were impious—they rejected Roman gods—but worse than that, they undercut reliance on the empire. They "not only feed their own poor, but ours also," he wrote. "See their love feasts and their tables spread for the indigent. Such practice is common among them and causes a contempt for our gods."
Julian complained that Christians were demonstrating something better than what the empire had to offer. Facing mockery and lies, early Christians didn't back down from the beliefs and practices that set them apart from their neighbors.
Christians feed the poor for the same reason they reject sex outside heterosexual marriage. Following biblical teachings, we love our neighbors and don't want to see them enslaved to poverty or broken sexuality. It's that love and compassion that sent Jesus to the Cross.