Why Is It So Important to Ralls to Delineate Between Moral Arbitrariness and Moral Inequality?

Rolls: To rals, you're not entitled to things that are morally arbitrary. Best way to explain why he feels this way is to give the opposite example. He says it would be wrong for anyone to think it was just for you to own the consequences of something only in your life because of a horrible stroke of luck. But as we'll see later, that doesn't mean it's necessarily the job of the government to take it from you.