Because, for example, no parents should lose their kids to leukemia.
At 17 y/o I was save from peritonitis / sepsis first misdiagnosed as harmless belly pain and hidden by painkillers. Then it became a matter of hours and from the moment the doctor saw me again and I undergo surgical operation, less than two hours happened.
My father got diagnosed a stage 3 bladder cancer with metastasis to the prostate about 3 years ago. He's still there and doing better.
That's why we need innovation.
And, no, science ain't a bag out of which you pick what suits you (medicine) and leave out what you don't like (the Internet / LLMs / etc.).