Good try, no cigar (or Whoopie Pie). People in this country will pay over $5 for a pack of cigarettes; they'll pay extra to eat whatever they want. Not everybody is motivated by cash.
I think the problem is complex, but components are ads that tout eating as a "fun" pastime, sedentary work and leisure activities, cheap & tasty processed food masquerading as nourishment and not delaying of gratification. Today's culture.