In high school I got a part time job at Walmart. I ended up working all over the store. I gathered carts from the parking lot, stocked shelves, unloaded trucks, worked the checkouts and even did customer service. I wasn't going to get rich there, but it was a decent enough job for someone with no skills or experience. Almost 15 years later when I walk into my local Walmart I still recognize some of the people I worked with.
My co-workers were generally much older than me, a little strange and had worked there for many years. There was community among the employees, but as a high school aged male I was not interested in it. Society does not think highly of Walmart employees. A job there is not something to strive for. I am sure most only made marginally more than my $8.65 an hour (65 cents above minimum wage!). The bottom of the Walmart hierarchy held individuals that found many aspects of life to be a struggle. Perhaps some might consider it too strong to label some of them as the "least of these" but I suspect they didn't all have many other opportunities.
Somehow Walmart had gathered all these people together to keep a store running. I don't want to over sell a job at Walmart, but I do think it gave people some purpose, a community, and I know it gave them money. The ability to support themselves. The Walmart corporation had not set out to help these people. There was no saintly intent, but through voluntary exchange both sides benefited. Walmart is often portrayed by people as an evil company that takes advantage of the poor. It is portrayed this way often because they don't pay these people enough money. However, I am pretty confident that they pay them more money than anyone who makes such claims.