It might be the case that the inequalities that would maximize the advantage level of the worst off would also as a matter of fact also satisfy fair equality of opportunity. Still, one might ask if fair equality of opportunity is justified as a free-standing moral requirement or as instrumental to the achievement of other justice goals (for criticism of FEO as a free-standing requirement, see Pogge 1989, chapter 4). To investigate the issue, one must look at possible cases in which the fair equality of opportunity norm constrains the pursuit of other justice values (Arneson 1999, 2013).