Two other points... The King (Zuma) has no clothes, he is exposed and he knows it, he cannot cover up. 

Secondly, the ANC may be viewed primarily as a rural party.... those living outside the cities and those who have moved to the city but still largely ascribing themselves as from the village! Their children will say they come from Johannesburg, Cape Town or wherever...

.. a caveat, KZN remains a Zulu fortress, remains fundamentally rural and where corruption seems more entrenched than elsewhere... and of course too where Zuma appoints most of his Ministers and heads of organs of state.