Thabo Mbeki's "misguided" (gees, what a euphemism - 'murderous' might be more suitable) policy that HIV was not responsible for AIDS has resulted in an unprecedented public-health disaster: 330,000 South African people died prematurely during 2000-2005 because of the unavailability of anti-retroviral (ARV) drugs.
Read the report by Harvard researchers for yourself. They also estimated that over 3.8 million person-years were lost during this period.
But at least Mbeki's leadership has been evident during the "troubles" in Zimbabwe.
Where are you, Nelson Mandela?
"There is no crisis in Zimbabwe." -- President Thabo Mbeki, April 2008, after the 2008 election in Zimbabwe