Sure but there are plenty of obese people living in “McMansion Hell” suburbs who can clearly afford vegetables. When visiting my parents in such a wealthy-ish suburb, the difference from similarly wealthy parts of NYC is very obvious (hey also you can’t walk anywhere in the suburb, weird…)
That's another aspect to it for sure. Those who chose to eat crap suffer the same fate as those who can't afford the alternative. Either way, eat poison = face health consequences.