Justice is defined by our courts as adhering to lawful standards of behavior. Justice is blind because justice is not partial. The law doesn't care about the specific details, it only defines boundaries and borders around the individual's property or person. It is only when the social has respected the individual boundaries that the social is of any moral or ethical value. Otherwise, it is an unjust community, organization or nation.
Justice is to be sought by all of us, as it limits evil, and protects society from further abuses of power. Individuals have to hold the social to account, and these are the ones who bring about social change.
Wouldn't it be the height of hyposcrisy and arrogance, if one teaches and believes in social justice and, yet, perverts justice by scapegoating an individual? This is why the evangelical message has no meaning, insofar as real justice. Real justice is about the individual and human rights, and good government, and lawful behavior.
Social conformity should only be done if there is an adherence to honesty, and integrity, and lawful behavior, which is demonstrated by a commitment to the value and worth of the individual. We must seek justice, especially in the face of evil.