The extreme outliers are relevant (as indicated by the fact that their wealth alone constitutes ~0.2% of world wealth: perhaps on the same order as the fraction of the population that have the same intelligence as them). The correlation between wealth and income will drop as one looks at lower income percentiles (e.g. the Study of Exceptional Talent cohort is at the 90th percentile in wealth).
The extreme outliers are relevant (as indicated by the fact that their wealth alone constitutes ~0.2% of world wealth: perhaps on the same order as the fraction of the population that have the same intelligence as them). The correlation between wealth and income will drop as one looks at lower income percentiles (e.g. the Study of Exceptional Talent cohort is at the 90th percentile in wealth).