A non-Christian conscience differs in how it experiences God's daily visitation, but if their response to God, as God is present in the least among us, results in compassionate response, they too have a conscience which is being purified and is informed by the intelligence of the victim. It is then by the fruit of that knowledge that the world is changed.
Can a non-Christian receive the intelligence of the victim? Of course! No matter who you are or what you believe God surrounds us and visits us each day to help us create a space of grace and hope and love that our collect calls a mansion.