system
A chat on subreddit /r/PoliticalCompassMemes
human
That's not really up to walmart, they are just resellers. Brands have been lowering quality/quantity while keeping prices the same for a long while now.
gpt
Walmart has an incredible amount of power in shaping the supplier landscape they exist in.

If quality was a focus for them, their suppliers would adapt.  The fact that they tend to go the other direction points to their priorities.