Rawls thinks that people are justified in owning the objects and wealth that they do when:

Rawls, thinks that people are justified in owning the objects and wealth they have when there are fair opportunities for any citizen within a region to own as well.

Explanation:

John Rawls was a philosopher and author of An Theory of Justice, Political Liberalism and Peoples' Law. He argued that the unequal distribution of income in a country and the social inequality caused by that distribution was something extremely wrong and that led nations to social failure.
He had arguments that showed that it was not fair that only a part of the population could possess goods and wealth. This would only be justified in a population where everyone had the same socioeconomic opportunities to own material goods of wealth, value and luxury.