I agree with Four Engine Jock. If a pilot has served at SAA and is a senior SAA pilot, and is in good standing, why should the selection committee not give their kids preference? It also goes the other way where we have SAA pilots who are not in good standing and their kids will never be hired by SAA, often because they tend to have the same traits as their father.
As long as the candidate meets the same experience levels as the other pilots being interviewed, they will have a better chance of getting the position if their father is an SAA pilot in good standing.
Life's not fair, especially if you are a white male in South Africa. My advice is to get to know some SAA pilots who are respected within SAA circles and get them to contact one of the selection committee members a few days before the interview to let them know what a good guy you are. Just make sure you are a good guy and not a former SAA basher!!