Moralizing doesn't save anyone from gangrene and sepsis and a slow death. It doesn't prevent the diarrhea to dehydration to death sequence. It doesn't do an ounce of good for anyone.
Immunocompromise (poor, sick, elderly, AIDS, etc.) + long-term antibiotic use = Antibiotic resistance.
That equation is death, and we need fixes, not the crap in your comment above.
"Also, I don't know how your society is or does, but in our country the poor have a better immune system."
No doubt you live on Mars or Venus.