Her mixture of deep ambition and ruthlessness when it comes to her union members' interests has won her admiration in some quarters, butpowerfulenemies too.
Mr Makgoba knows he has made powerfulenemies by complaining publicly, but argues something must be done to preserve the reputation of South Africa's scientists.
The prime minister may have fewer political enemies, but he also has little mass support -- something likely to rankle with more powerful leaders in the Front as well as in Congress.