Bookplanet: bioethical novels

Interesting discussion about bioethics by a lit prof here, and how we need to read novels to help us.
"Decisions about stem-cell research, end-of-life choices, organ transplantation, and mind- and body-enhancing drugs, among others, have become flash points for front-page news day after day. At the same time, some good literary narratives have emerged over the past few years that reveal our common yet deeply individual struggles to find an ethics commensurate with rapid advances in the new science and technologies." More here. He mentions Atwood, Ishiguro, Walker Percy and others, but no actual Sci-Fi novelists, who surely cover the subject up and down and going away. Why does SF fall outside literary discussion? Are they all badly written or something? Two of the most lauded novels of the 20th Century are SF, but by literary novelists: 1984 and Brave New World. Are there any SF genre novels that pass for literature?