And if I'm guilty of having gratuitous sex, then I'm also guilty of having gratuitous violence, and gratuitous feasting, and gratuitous description of clothes, and gratuitous heraldry, because very little of this is necessary to advance the plot. But my philosophy is that plot advancement is not what the experience of reading fiction is about. If all we care about is advancing the plot, why read novels? We can just read Cliffs Notes.
When you wake up in the morning, Pooh," said Piglet at last, "what's the first thing you say to yourself?" "What's for breakfast?" said Pooh. "What do you say, Piglet?" "I say, I wonder what's going to happen exciting today?" said Piglet. Pooh nodded thoughtfully. "It's the same thing," he said.