Some humans feel that it adds to life like: “It builds character” or “pain makes him a real man”. Or that Suffering could enable people to appreciate the good but no, hurting people in general is unessessary because the world does that daily. Actively harming humans is actually counter productive because too much suffering can turn them evil or into living husks/zombies due to too much loss.

Now there are select humans that would benefit from this as they seem have not been exposed to any hardships of the masses. Still the pain didnt give meaning. all it was is a catalyst to give a person empathy. Even then physical pain is not the solution it needs to be a series of emotional experiences/trials that can be overcome.

The only people I know where suffering is the meaning/point would relate to something like karma or something like a slaanesh cultist who couldn’t live without pain because without it they have no life.