I think you're really, really on to something, but just simply that calling it "surviving poverty" will give most people the wrong impression.
You've got to convince people that by spending every windfall (and by windfall I literally mean like 20 to 50 extra dollars) to "make up" for the resentment they felt when they couldn't pay their rent on time and got Eviction Notice #1... they've got to SAVE IT or the entire rest of their life will just be a boom and bust cycle of windfalls. Once you are proactively "defending" not eating into your hard earned savings account, your mentality changes 180 degrees - in a single day vs when you are living in the red 365 day/yr.
I know a guy from college, poorest guy I know, constantly begging off family & getting late fees on his rent. He works a crap job though at least 250% minimum wage because he couldn't finish school on the 6 years of full-ride scholarship he got for having the right skin color (school diversity scholarship) and then still wanted a degree so took out a $80,000 loan for a fraud school. He failed out.
I lived 2 years on his same income, it is low, but he doesn't live in a HCOL area - so I can assure you it is plenty if carefully managed. He doesn't buy anything impressive, he appears to live a basic life, BUT: He just has no idea how to manage his emotions and therefore to manage his occasional spending. There are probably 10 guys like him for every person who actually is so broke there is no way out. I know how he uses his windfalls - he openly admits it to me without even thinking for a second that it makes no sense - and he's in his 40s now. I can't lecture on it because the emotional wall that comes up won't let him hear - it is "capitalism" that is to blame apparently and some politicians. This is what America's "poor" looks like, it is far more a mental state than concrete reality.