John , You may have heard of the Moral Mondays movement in North Carolina who have been supported by the Center on Poverty Work and Opportunity at UNC. The issue of economic justice is very much in their focus and Walmart has been one of the targets. The influence of external activism should not be underestimated. I doubt Walmart would have done anything without it. https://www.linkedin.com/pulse/20141210100005-3207079-the-international-covenant-on-economic-social-and-cultural-rights