[sureglymop]

IQ is not a predictor of success. Very often, a high IQ even correlates with some handicap, e.g. adhd, asperger's, bipolar disorder etc. These are people who generally due to their handicap have it much harder in society, not easier. Beyond that, IQ is about logical thinking ability. But the actions which make you successful might not be at all logical/rational. Furthermore, gifted children often suffer from loneliness. This can affect their development and directly affect their social status and "success" in life.