If the Human King physique were an exceptionally rare constitution with scant Sect records, his 'insincerity' here wouldn't be an issue. But the Human King physique, while indeed rare, isn't *that* uncommon in the Cultivation World...
As far as he knew, the Flying Feather Immortal Palace alone had two individuals with the Human King physique: himself and Song Knife.
The major Immortal Sects should all possess abundant records on the Human King physique.
Overthinking is pointless...
If all Human King physiques recorded by the Sect share similar temperaments, that would actually be to my advantage. Once others form a fixed impression of me, it becomes easier to profit from it...
Besides, it still comes down to the same thing. Insincerity or hypocrisy, at least I've accomplished tangible deeds. In the eyes of the Sect's high-level members, would they really suppress me just because my motives aren't pure?