Most wuxia heroes were somewhat reluctant heroes: they were not reluctant to help people and fight for justice, but they were usually reluctant to make a lifelong career of beating people up (even if those people were evil and deserved to be punished). Even the most valiant wuxia heroes would have preferred to settle down to more peaceful, quiet lives if not for the fact that their abilities were needed to protect the innocent and uphold justice.
That being said, which wuxia heroes clearly enjoyed what they did, and made a career out of it not only because it was the right thing to do, but also because they derived pleasure from doing it?