inequality is freedom. equality is not! So... if you believe in a free society and open markets then inequality is neither good or bad, it is what happens.
Imagine that a group of people, a nomadic tribe perhaps, wanted the freedom to live in a non-hierarchical society. If someone imposed inequality--that the best hunter/gatherer in the group should receive a "fair" share of resources--that would be restricting the freedom of the people, would it not?