Min Tzu-chien had lost his mother at a young age. His father remarried and had two more sons with his second wife. She always dressed her own sons in thickly padded robes. But to her stepson she gave only a thin coat. One winter day, when Min Tzu-chien was told to hold the reins of his father's cart, but he was shivering so badly that he dropped the reins.

Question

This was the way his father found out that his wife was dressed his oldest son very poorly. In his rage he decided to dismiss his second wife. Filial piety yes or no and why