Everything isn't a Walmart, Sweetie. We don't all have greeters. Merchandise has to be unpacked, ticketed, displayed, marked down, inventoried. I had a colleague who was really, really, nice. She talked forever though, in proportion to the work she was supposed to do. (Straighten the store, close sales.) The dear, sensitive soul took two weeks off when her cat died. She had to take off the week *before* her week vacation, because it took that much time to choose and pack her clothes.
This *nice* woman was chatting away, giving a customer a recipe for (I kid you not) clam chowder. Outside was a good, reliable, profitable customer confined to a wheelchair or his specially equipped van. She couldn't stop talking to a stranger long enough to run paid-for merchandise out to a really good customer.
NO one should be treated badly, but the reason most of those greeters you see *are* greeters is because that company gets good PR by giving do-nothing jobs to the physically handicapped or disabled.