Literature can be as much about culture and history as it is about the art, emotion etc, so Dickens, Woolf, Jonson, Thomas, du Maurier, Austen etc deliver a "triple whammy", if you like, that could help pupils in their other areas of study. (British) English literature is so diverse that I don't see the need to go to the US, Australia, Canada etc for GCSE or 'A'-level. A good teacher can recommend such texts for personal reading or - get this - an inspired pupil could discover what they really like themselves. Such curiosity, though, does depend on parental and school input to an extent.