Why does the hatchery purposely keep some embryos from developing high intelligence?

The hatchery deliberately limits the intelligence of certain embryos to maintain social stability and ensure that individuals can perform their designated roles within the community. By controlling intelligence levels, the hatchery aims to prevent unrest and competition that could arise from individuals with higher cognitive abilities questioning societal norms or pursuing divergent paths. This strategy aligns with the overarching goal of creating a harmonious and efficiently functioning society.