Developing countries should absolutely get the standard set of antibiotics.
Formulas for "antibiotics of last resort" (I would consider a newly designed one in this category) should not be sent to Pharma companies of these countries, rather, the antibiotics should be pre-dosed and mailed over from a country who can maintain the integrity of the formula in a limited fashion to keep their effectiveness high so they can continue to serve patients years into the future.
It sucks, but we've watched antibiotics be abused so badly that babies are born into hospitals where they catch resistant infections nearly right after childbirth. I blame the antibiotics-for-every-cough medical practices common in some countries (I've seen this happen myself!)