I'm not a Zuma supporter either.  Sex is normally a private act.  How does a court rule between two versions of a sexual act - consensual or non-consensual ?  Eg. If a woman agrees to have sex with someone, and afterwards decide that, for some arbitrary reason, she will lay a charge of non-consensual sex against that person.  How will anyone not having witnessed the episode, (without evidence of violence) be able to decide whether it was consensual, or rape ?  As mentioned by the Prof., status may be the final decider.  That is one of the reasons why in Islamic Sharia, to falsely accuse someone is regarded as a criminal act, and liable to strict punishment.