Yet, inequality in income may also affect inequality of opportunity, if for instance access to education, health care and other services and goods affecting present and future capabilities depend on income.6 Then, income inequality may become entrenched and an increasing share of it will be due to inequality of opportunity. Wilkinson and Pickett (2010) reviewing thirty years’ research maintain that more unequal societies have worse health outcomes than more egalitarian ones in addition to more acute social problems such as a lack of community life, violence, drug abuse and large prison populations. Overall, an assessment of the empirical literature on the link between inequality and health for rich countries suggests that the evidence is still inconclusive (Leigh et al.,