Well, sure. If you think about inequality in terms of variance from the mean income, an increase in the size of the very wealthy class (an "outlier class") incr

Well, sure. If you think about inequality in terms of variance from the mean income, an increase in the size of the very wealthy class (an "outlier class") increases the variance in the same way that an increase in the size of the extremely poor class (another, less extreme "outlier class") does.