That is just an excuse. If big companies really care, they can make it happen. For example I know several people who work at Walmart in Chile, and they've told

That is just an excuse. If big companies really care, they can make it happen. For example I know several people who work at Walmart in Chile, and they've told me about the very strict rules the company has for negotiating contracts and dealing with vendors, breaking those rules is considered a very serious issue and usually ends on the person who broke those rules getting fired.