I think that "intellectual property" is a contradiction in terms and therefore I don't view patent laws as legitimate. Since I don't consider patent laws to be part of a free market, I think that the South African government is morally justified in doing anything necessary to oppose dishonest laws that are ending lives. In a side note, America uses the UN but doesn't follow its rules, as shown by the 2003 invasion of Iraq. This is just speculation, but perhaps gold subsidies would be good leverage to counter the threat of sanctions.

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"Some people complain about the system. The system is not good, so they can't do anything. It's an excuse. Freedom is in your heart." (Jin Xing)