As the top name on the Earth List and a renowned powerhouse, Meng Jingxian was never a hero; to him, the Yi Sword Sect signified "responsibility."
He was the Sect Leader of Yi Sword Sect. Therefore, he was only responsible for Yi Sword Sect. He didn't care about the people of the world; Yi Sword Sect was his world.
Su Xin mostly preferred to use stratagems when acting because that allowed him to accomplish tasks with the least effort.
Only when his own strength was overwhelming did Su Xin enjoy using sheer violence to solve problems. For instance, earlier, when facing Yin Wuchang, a problem that could be resolved at a glance obviously didn't require so much scheming.
However, Meng Jingxian was different; his method of solving problems always involved just one thing—his sword.
Looking at Xuan Ku, Meng Jingxian picked up his sword and said gravely, "Meng Jingxian of Yi Sword Sect seeks guidance from Master Xuan Ku."