Did you say that Walmart pioneered the exploitation of unskilled workers? No? Good.
But if you ever give this idea a second thought, I recommend that you read the compelling play "Waiting for Lefty" by Clifford Odets. Lefty is the union leader who is going to organize the poor desperate taxi drivers. They earn almost nothing and they blame their employers, the owners of the taxis, who reduce their wages. Their wives and sweethearts are deserting them or kicking them out. The credit companies are repossessing their furniture. Their children are hungry. If they need medical care, only charity will give it to them. And Lefty never comes.
I have been meaning to read this play for a long time. It's powerful. It's completely relevant. And it was written in 1935. Are we really still waiting? If Lefty came today, what would he do?
Waiting for Lefty and Other Plays by Clifford Odets.