how can writers like Golding win nobel prizes? is there politics here too?

Answer 1

If you are considering William Golding, he already received the Nobel Prize. There is politics in the Nobel prizes, but not politics as usual. It is the politics of literature, and the politics of science. The Peace Nobel Prize tend to have a real dose of politics.
http://nobelprize.org/nobel_prizes/literature/laureates/1983/golding-lecture.html

Answer 2

Don't you think William Golding deserves his Nobel Prize? I imagine politics are involved to some extent but the eventual winner has to be defensible before the world community.