How are the purposes unfortunate? I see the connection between the cryopreserved often being smart folk, so that in the future at some point it might be adventa

How are the purposes unfortunate? I see the connection between the cryopreserved often being smart folk, so that in the future at some point it might be adventageous to revive them for their intellect, but... Consider that by the time they can perfect the nanotechnology to repair the brain damage dealt by the freezing process, they will easily be able to genetically engineer a near maximally capable brain. Why not just genetically engineer humans that have high cognitive potential than try to reintegrate those so long dead they cannot function in this futuristic society? It won't cost them much to revive people, but I don't expect the preserved to be sought after for their intellect.