Whether diversity is a social benefit depends on whether it creates excuses to fight each other for special treatment. Politicizing our differences is far more likely to make diversity a source of conflict.
Clearly marked prices on private-sector cash-payment surgeries are a great thing. In fact, the competition of for-profit surgery centers drives down prices at more "traditional" (i.e., highly bureaucratized) hospitals.
Many advocates claim government intervention is necessary because markets are too unstable. The real instability, however, comes from the immense uncertainty over what government will do next with its vast and arbitrary power.