Command out of seniority to start with. The very capable leadership management has shown over the last 10 years is another. The FACT that SAA has started a freight program when the rest of the world airlines have been doing it for years is another, and lastly have a look at the corruption within your airline, the upgrades for a kickback at the check-in counter...ohh what about the blatent stealing that is happening on board the aircraft. Tell me something if the future was looking so great , why are so many guys leaving for Dubai and CX.
I can also give you a fact that yes some guys do go back to SA for Golf Holiday etc, but there are a lot more that do not do it on as frequently as you imply. You can also mention the number of SA guys that have move on a base to Perth or New Zealand and have not hang on to the mother land.