I'm starting to see some tension in the thesis (or theses) of Outliers.
Chapter One: Professional sports and higher education are not really meritocracies. Those who succeed do so because of a random advantage given them by being older and more developed.
Chapter Two: There are no naturally gifted people or naturally disadvantaged people. All you have to do is spend 10,000 hours practicing to reach an expert level of performance.
A world where everyone has the power to achieve excellence by merely put in the work, is a fairer world than the one I observe. And I generally believe the developed world, despite its injustices, is, on average, a meritocracy.