I think Drug resistance is caused not by overuse of antibiotics but under use. By not killing the organisms in the first place, multiply their chances to grow resistant.
If you are talking about the 3rd world typhoid and cholera issues, those superbugs wouldn’t have happened if people chlorinated the drinking water as opposed to just giving them antibiotics for repeated typhoid infections. Chlorine can kill most waterborne germs, especially typhoid, especially cholera.