 Where the rules may conflict in practice, Rawls says that Principle (1) has lexical priority over Principle (2), and Principle (2a) has lexical priority over (2b). As a consequence of the priority rules, Rawls’ principles do not permit sacrifices to basic liberties in order to generate greater equality of opportunity or a higher level of material goods, even for the worst off. While it is possible to think of Principle (1) as governing the distribution of liberties, it is not commonly considered a principle of distributive justice given that it is not governing the distribution of economic goods per se. Equality of opportunity is discussed in the next section. In this section, the primary focus will be on (2b), known as the Difference Principle. 