Be critical of what you believe in.

Humans don't put effort into distinguishing between right and wrong. Because it's not essential to survival. What is essential is for survival is staying on the winning side - serving the cause of the 'dominant'. It explains the atrocities that were committed by our ancestors (and some of us).

Hardwork does not DIRECTLY lead to success.

Hardwork leads to failure which leads you to success. Hardwork is the test ground of your effort and failure is the test ground of your motivation. Unless you pass both the steps, you cannot reach success.