How about equity instead of equality? Anyway, "social mobility" generally just means there's no caste system or effective caste system. If the inequity in the

How about equity instead of equality? Anyway, "social mobility" generally just means there's no caste system or effective caste system. If the inequity in the system means that a small percent of people hold most of the wealth and power, what difference does it make if anyone has a chance to join that elite? In a zero-sum game, social mobility is better to exist than not but it isn't going to actually change anything fundamental.