[@Shoryu Magami] you bring up a bunch of interesting points and have given me a great deal to think about.  I'm going to make only two comments in reply:

First, romeo and Juliet.  I enjoyed it as a kid.  Still do.  But it's spoken of as a great and tragilove story and...in the end, it's really not.  Love at first sight, rushing onto a permanent relationship...being an idiot.  It's solid storytelling, but I think it's very definitely genre by your definitions.

Secondly, star trek.  I have read a bunch of stuff about it, and while yes it was pitched as a space western, Roddenberry intended from the beginning to use it for social commentary.  Not every ep, and I couldn't speak to how well, but a number of his decisions were made with an eye towards is purpose.