Perhaps the Pope should stick to spiritual matters rather than economic ones. The people in low wage countries are not prisoners, they are not starving. The wages they receive are livable in those locations. If they dont like the work they can try to get a different job. Furthermore, we are not responsible for building codes in haiti or India. Its not our fault some dimwit engineer inspected the building and declared it safe just before it collapsed.
Christians, a fortiori the Pope — have the right and the duty to speak out on moral issues. Pope Francis is well within his competence in pointing out that a reductionist view of human life in which everything must give way to the free market is anti-human and irrational.
Free markets are a tool to produce useful information. When they become a religion or ideology they are out of control.