Why must this result in less joy.
Chess has utility in only the most abstract sense, yet people enjoy it.
Computers became better than humans, and some dispared, but more still enjoy it.
Computers provide insight into the problem, which leads to a greater enjoyment for many people. Instead of finding a move in a complex state and thinking 'I'll never know if that was the best move'. A good chess engine can give a reasonable suggestion of what the best move actually was.
It does take from you the feeling of being special.
We are no longer the only world in existence, we are no longer the center of the universe. We are no longer crafted by a all powerful benign being to be exactly how we should be to rule this world. We are no longer the only things that can play a good game of chess.
That hurts a sense of pride, but I'm not sure it was a worthy sense of pride.