You miss the point of parliament.  It is literally a talking house.  It is the pinnacle of civility, where people have decided to bury the hatchet and apply their minds to issues of living together and how to order their lives equitably.  The abuse thereof is prime motivator to protect it.  Vis a vis Thuli Madonsela.  Civil democracy is based on one thing only.  Mutual respect regardless of different opinions. It is a mental thing only.  Zuma is a one man civil disobedient.