也未必。Lord of the rings 里的 Bilbo 和Frodo的妇人之仁最后不但拯救了自己

也拯救了 middle earth, 包括人类。这是我喜欢的对话之一，在 Frodo抱怨当初 Bilbo 妇人之仁没杀 Gollum, 留下后患，Wizzard Gandalf对他说的：

Frodo: 'It's a pity Bilbo didn't kill Gollum when he had the chance.'
Gandalf: 'Pity? It's a pity that stayed Bilbo's hand. Many that live deserve death. Some that die deserve life. Can you give it to them, Frodo? Do not be too eager to deal out death in judgment. Even the very wise cannot see all ends. My heart tells me that Gollum has some part to play in it, for good or evil, before this is over. The pity of Bilbo may rule the fate of many.'