If you believe that anyone counting cents is aware or concerned with it being "rich in protein" by your standards then count yourself among the disconnected. Survival is first.
"Geez"
"Geez"
It's especially bad with all the fake/bullshit nutritional science that has to be debunked which created a whole weight loss industry.
Shitty refined carbs and sugar/corn syrup might save you money over the short term but over the long term you're going to pay the price with massive health issues. Considering most poor people's greatest asset is their own body that's false economics.