The value in both cases lies just in the deviation from reality in the service of human desires and ideals.
The desire and ideal of the scholar is to give us an interconnected world in which we understand everything by its being linked with everything else; and the desire and ideal of the artist in every possible art is to give us things which are freed from the connection of the world and which stand before us complete in themselves.

The things of the outer world have thousandfold ties with nature and history.

An object becomes beautiful when it is delivered from these ties, and in order to secure this result we must take it away from the background of reality and reproduce it in such a form that it is unmistakably different from the real things which are enchained by the causes and effects of nature.
Why does this satisfy us?
Why is it valuable to have a part of nature or life liberated from all connection with the world?
Why does it make us happy to see anything in its perfect isolation, an isolation which real life seldom offers and which only art can give in complete perfection?
The motives which lead us to value the product of the scholar are easily recognized.

He aims toward connection.

He reshapes the world until it appears connected, because that helps us to foresee the effects of every event and teaches us to master nature so that we can use it for our practical achievements.