Trade is not a zero-sum game, in sum we gain. Cooperation leads to synergy. The sick and poor cost money. Having that in mind, I cannot understand why a country wouldn't give food and money and shelter to the poor. Without shelter, you get sick and can barely work. Without money, you are stressed and get sick. Without food, you get sick and can't work. It's obvious that even the hard working people have a better life when society helps the less fortunates ones. So, why on earth wouldn't a country do it? That would be unethical, irrational and economical madness.