> Even though Walgreens is a national retailer, non-thieving locations should not be made to subsidize the thieving locations.

This is all part and parcel of society, of corporations, of any multi-site organisation. Each node has its own advantages and disadvantages. High "shrinkage" sites often have high sales and a corporation that sticks to "small town Illinois" is never going to be able to offer the economies of scale of Walgreens.