I am told that interrogation experts regard torture as a generally ineffective method of gathering reliable information.
In that regard, I dislike torture interrogation as portrayed in fiction, because it has the potential to impart false beliefs about torture.
The real world doesn't tend to have serious threats solvable by torture either. Terrorists don't actually get a hold of nukes, hide and prime them to detonate in a few hours, then get captured by law enforcement. Superweapons don't get hijacked, set to attack, then locked behind a password.
The real world also doesn't have magic that allows you to sense truth, magically binding oaths, or any other ways fiction can make torture actually verifiably provide information (although in such cases, there are probably better ways of doing that. Magic that outright prevents lying, or forces you to tell the truth? Mind-reading would be better used by simply asking relevant questions.)
There are many things that are horrible in real life that might be different in fiction. I think genocide is horrible, but against the zerg? Tolkien Orcs? Is there really any other option to dealing with "always evil" races?
Part of my interest in speculative fiction is due to how changes in reality (whether magical abilities or Minovsky particles) change how societies function. Most works purposefully change as little as possible. Usually by banning AI and transhumanism in Science Fiction. In Fantasy, it's usually done by limiting the number or power (either actually limiting power or making magic useless against humans) of magic users, or simply creating a "masquerade" separating mages from muggles.
But when writers actually go into how their additions change things, that's when I get interested. How does magic change the economy? How do the existence of Geas or magical oaths change civilization? What does a society running on necromancy or blood magic look like? In science fiction, does A.I. end up governing humanity, or enslaved by them? What are the ethical ramifications of reprogramming such a being? If humans are uploaded to machines, can they prune their own personality?
Believe it or nor, some people actually do believe what they read in fiction, especially so if it pass their disbelief filter.
I'm not a fan of censorship. If a work of fiction portrays all brown people as evil, or atheists as satan worshippers, bad reviews and not purchasing sequels is what I consider the appropriate response.
Works claiming to report facts are a different story.
It would be weird for certain grimdark settings like Game of Thrones to lack torture, or for torture to never provide actual results. But false confessions should also crop up.
As for people being influenced by it, I've rarely seen a scene with torture that seems like it would convice people we should use it today. Usually it's quite the opposite. I suppose 24 is an exception, but again, it has absurd situations.