It made no sense because you added the word "only".Only the faithful do what is right because it is right? No one else. Everyone else does wrong all day long? I am encouraging you to match your thinking with the real world out there so that we as believers have an answer to the world that makes sense.
I didn't say "only".
The faithless will do right if it lifts themselves in the eyes of others.
They "gained" the knowledge of good and evil.Does not answer the question. What did Adam and Eve gain after eating the fruit according to the Bible?
Don't you wish "awareness" translated into "actions".A one year old child has not reached the age of accountability. At the age of accountability a human being becomes aware of moral right and wrong.
It doesn't if the parent/master if the parent/master is morally above reproach.The idea of doing right only in order to please a parent/master becomes weaker and doing right because it is morally right becomes stronger, in the faithful.
The kids learn from their parents and from everyone else they meet on the way to "accountability".