I’m not saying that Walmart cares about customers per se, but if it wants to make money, it’s gotta have the requisite goods on the shelf.
If it’s selling twice what it usually does on a particular day, it’s gotta have the staff to do that.
They could care less about customers. All they have to do is get cheap Communist Chinese products on the shelves, which they can mark up 10 times what it cost to produce it.