Challenge to Utilitarianism

Mill sees one major challenge against utilitarianism. Some critics claim that utilitarianism is opposed to justice. He believes that this specific criticism must be addressed because it is a serious matter and may be taken the wrong way. Chapter 5 builds up a definition of justice and its historical roots. Mill does not necessarily believe these assertions, but he does want the readers to understand how others define justice. Here is a quick rundown:
It is unjust to deprive people of legal rights
It is unjust to deprive people the moral right to possess
It is just for people to get what they deserve and unjust for them to get what they don’t deserve
It is unjust to violate an agreement
It is unjust to show favoritism
Justice is conformity to law
Equality is a component of justice.
Mill tries to distinguish justice from other forms of morality. He does this by trying to express the differences of perfect and imperfect obligations.
Mill does not believe that justice is as abstract of a concept as other portray it. He believes that all people understand the concept as a whole. He believes that justice is socially constructed.