Technology should aim to solve problems both big and small. If all we did was life-extension and deep space exploration, nobody would be solving problems we have today -- tracking how much food we eat automatically or how much fuel should be injected into the engine based on driving conditions/style.
You might think this isnt new "AI" technology, but as others have showed this is the first time we've seen an "AI" tech convincing masses that it is real human using voice.