They're the villian because they purposely work many of their workers "part time" so they don't have to provide them benefits. Then they facilitate them going to the public sector to get "assistance". They got $6.2 billion in federal subsidies in 2013. They also close down small businesses when they come to town.
They're a great example of why "trickle down" doesn't work. They take all of these steps to save costs and they don't spread those savings out.