Noah functioned in his purpose and his life exemplified the WAY OF YHVH. His justice and righteousness, due to his faith, brought forth a witness against the INJUSTICES and INIQUITIES of his day.
When we do acts of justice and righteousness, we teach/show others the WAY OF YHVH.
Keeping the WAY OF YHVH begins with FAITH, that leads to ACTION, that is based on PURPOSE focused on ETERNITY.
Noah demonstrates that a person can live as a tzadik in a corrupt and violent generation. If he did it, then we have no excuse as to why we can’t live as tzadik’s in our generation!