Subjectivity makes such criteria dangerous because of their absoluteness. The right way is based on the simple ruleset that establishes property rights and then you inspect the evidence to determine who violated who.
This is why most rules are wrong, also, because they start from elastic definitions that can render the opposite of justice. Needing rules is the least reason for government. Most simply legitimise what would otherwise be considered wrong.
To me, moral means to respect legitimate claims and make those who violate make reasonable efforts to return what is taken.
RE: Morality: Only Subjective Or Objective?