2 new drugs offer options in HIV fight

The International Herald Tribune reports about 2 new drugs offering options in HIV fight.
One drug, maraviroc, has been developed by Pfizer; the other drug, raltegravir, has been developed by Merck.
If humanity could find a cure for HIV/AIDS it would be a major breakthrough and a clear sign of progress.
Unfortunately I have become a little numb from the last 10 years’ of several “almost HIV/AIDS cure” announcements to be joyous anymore.
I doubt that there is enough profit for a company to develop a one time cure for HIV.
All the profit is surely in producing expensive drug cocktails that have to be taken regularly and for the rest of a patients life.
Unfortunately HIV/AIDS has a tendency to become resistant to drugs after prolonged usage so new drug cocktails have to be developed periodically.
Let’s not be naive but instead realise that corporations have a responsibility to their share holders to maximise the return of their investments.
It would be very irresponsible to develop a cure and thus killing the steady revenue stream from millions of regularly paying patients.
The very nasty drawback is that millions of patients in developing countries do not have the funds for expensive drug cocktails and are in dire need of a cure.
Had penicillin been discovered during the last 20 years would it have been released? Maybe not and instead there would be daily medicine to be taken to keep an infection at bay; never quite curing it.
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