Prof Kivutha Kibwana is the type of guys that expect girls to fuck then just because they're nice.
Ati "I don't drink, I don't smoke, I don't steal, I don't talk dirty, I don't judge people, I trim my nails, please sleep with me". Won't happen bro.
In this context, he doesn't "judge" so he doesn't want and/or doesn't have the balls to point out the fuckery that Uhuru, Raila, Kalonzo are involved in right now because he fears to be branded Tangatanga; and he won't call out members of Tangatanga lest he be called Kieleweke.
For that reason, he's only a slightly clean watermelon.