Even in the top 0.1% many are self made. My comment wasn't about whether they are self-made or not (and many people who got a head start in life have done very impressive things, one of the surgeons who pioneered transplant surgery was from a very wealthy midwestern family who made their money from the railroad industry). My comment was about Byrne's assertion that there are more ways to become rich that don't require social skills than ones that do. That doesn't seem true to me.