>Most of them discover that they are less capable than the supposed low-skill workers at actually doing the business and generally it is a humbling experience in which the boss realizes that he/she is reliant on his/her people, many of whom take pride in the firm and make a big difference to its success
>
>Yeah, that Walmart greeter position certainly requires skills that rival those of a Kittyhawk developer <s>

No, it doesn't require skill. It does offer a way for some seniors to supplement their income, and gives them something to do.

Here's one from the local WalMart. Over 15,000 people on Facebook like/appreciates him.

http://www.facebook.com/pages/Wal-mart-People-Greeter-Smitty/253735793313?ref=search