Considering your background, I know you can attest to this, some of the absolute best foods are or where once considered ‘poor’ person food. Feijoada from Brazil pops to mind- pork scraps and black beans..
One cheap cut of meat that is a foodie secret is beef cheeks. Correctly cooked, and they are more tender than any roast you can find, they are similar to Wagyu at 1/10th the price.
There is no part of a pig that is not good. Poor people long ago learned to eat everything but the squeal.