Walmart didn't invent service. Jesus invented service. His life was totally devoted to serving those he had been sent to seek and to save. Corporations really ought to be studying us to learn about service. We're the body of Christ.
Service is our whole reason for being.
We're here, first of all, to serve children. Then read our Gospel lesson for this day. Mark structures it the same way. This time, the disciples failed to understand because they were still preoccupied with position and status. And Jesus responded, in a way that becomes more and more characteristic as he moves towards his final week, by dramatizing his message.