My personal view is that SF is socially responsible because by projecting current ideas, or social or political policies into the future we can see the consequences and effects on our world or our society. It helps to review the likely outcomes of decisions and hopefully proactively revise those decisions if necessary. It's easier to prevent disasters before they occur than to clean up afterwards and live with the aftermath. (As I used to keep saying to managers in my various workplaces, a lot of whom seemed to be unaware or unconcerned for the consequences of their decisions, but don't get me started on that!)

One of my favourite authors is Ursula K. LeGuin and I think that she showed a lot of social awareness in her work. Margaret Atwood's ventures into future worlds are similar. It's the effects and consequences on people which are core to her work.

I was very surprised to see Louis L'Amour's name on the wiki list of SF authors. We had so many of his western novels in our collection at the public library. I don't remember any SF titles.