There wouldn’t be a society. Because humans will be dead.
Pain is necessary. Pain tells us something is wrong with our bodies. Without pain, we could be walking on broken bones, have fatal wounds, and don’t know about it until we can no longer move or drop dead. A small splinter could stick in our back, got infected, causing tissue damage before we know it, there’s gangrene and we’d be dead.
We could get regular physicals, but the diagnosis would be extremely difficult when the patient can’t tell the doctor what is wrong.
We’ll probably go extinct within a few generations.
