My opinion on the Trilogy is that all the protagonists lived very secluded lives before becoming embroiled in the world, then once they did have to contact anyone they all somehow gained super martial arts so can disable their enemies without killing them.
For example, HSDS Cheung Mo Gei never met more than 20 people in his life prior to the 6 sects attacking Brightness Peak. Then at the key time he learns secret Ming kung fu to beat everyone without injuring them.
WXB does not have that luxury or choice which makes him more realistic.