For your last question—I think there are very few, if any, implications. Humans arguably occupy an extremely tiny region in the space of possible intelligent agent designs, while the orthogonality thesis applies to the space as a whole. If it was the case that goals and intelligence were correlated in humans, I’d expect it would be more reflective of how humans happen to be distributed in that space of possible designs, and not telling us much about the properties of the space itself.
For your last question—I think there are very few, if any, implications. Humans arguably occupy an extremely tiny region in the space of possible intelligent agent designs, while the orthogonality thesis applies to the space as a whole. If it was the case that goals and intelligence were correlated in humans, I’d expect it would be more reflective of how humans happen to be distributed in that space of possible designs, and not telling us much about the properties of the space itself.