In most wuxia stories, conflict and strife among martial arts sects typically drives much of the story. In many wuxia stories, it's common to see Shaolin, Kunlun, the Beggar's Union, Mo Dong, Ngor Mei, Mt. Hua, and assorted other sects struggling against each other for power or vengeance.
In LOCH and ROCH, however, there seems to be surprisingly little inter-sect strife in wulin. There were some small inter-sect conflicts (i.e. Cheun Jen Sect vs. Ancient Tomb Sect), and certainly the Greats had *individual* conflicts of various sorts against one another, but the larger inter-sect conflicts that characterize most other wuxia stories were not so evident in LOCH and ROCH. A part of this might be attributed to the fact that during LOCH and ROCH, China was being threatened by foreign invaders and thus, wulin had to present a united front against the foreigners. However, in periods of relatively greater inter-sect conflict such as DGSD and HSDS, there was still a foreign threat to contend with.