The issues about Wal Mart have been around for sometime now. Working there as a second job and working there as a primary job are two different things. Those who rely on the job for their sole dependence are the working poor (I am not talking about the managers.)
And there was a time when Wal Mart would NOT open stores in inner cities. They left those to K-Mart.

That in and of itself is why I do not shop at Wal Mart.
How is Target different? It is a conglomerate that also includes upscale retail stores. It does not need to rely on severe cost cutting to offer lower prices in the Target stores, because it has a different relationship with its vendors.
Ideal08, thanks for the link. Robert Greenwald makes some very thought provoking movies.