Perhaps, but debatable whether knowledge itself adds something to cognitive capacity. Two thoughts: (1) Some theory of mind researchers equate having strong ToM abilities as roughly equivalent to having consciousness. I think knowing precisely how consciousness emerges may help develop our ToM. It would also be a tough sell to claim a mind with zero knowledge (a so called tabula rasa) has consciousness. On the other hand (2) Do feral or isolated tribes of humans have the same level of consciousness as those in developed societies? I suspect they do.