The Source of Blood Path

What the majority agrees with may not necessarily be right, and what a minority adheres to may not necessarily be wrong. Should the judgment of right and wrong be based on rules or on one's own heart? The choice before interests is the most popular one. The "wrong" that seems to be self-interested may hide helplessness, and the "right" that sticks to principles may be bruised and bruised. How would you weigh it?