Genre fiction isn't less "worthy," it's simply different. It also depends on what qualifies as "worthy" I suppose. The worthiness of books required for a school's curriculum really depends on what the reader gets out of it, which might not be much depending on how it's taught. It depends. While genre fiction contains different information that literary fiction, that is not to say the same morals can't be obtained from both.
Is there a difference between literary and pop/comm/gen fiction? Mosdef. Literary fiction probably holds more morals, themes, and is written more eloquently. Genre fiction can be less tasteful and definitely less developed. I'm not sure there's a clean boundary between the two fiction types, though. I'm still trying to come up with an example, but I'm sure there are works out there that toe the lit/gen fiction line.
As for what constitutes "good," who knows. There's a panel of people out there who deem books "worthy" of lists (Best Books of 2011, etc), but again, it's subjective.
What I am sure of is that I don't agree with the theory of "Readicide." Firstly, the wordplay doesn't work at all. Secondly, just because someone doesn't like books that are taught in school does not mean that will make him or her hate reading outside of it. I'm not speaking for everyone, but that's true for me at least. Just because I could barely get through Grendel doesn't mean I'm never going to pick up a book again. There are so many out there that are different. It's like if the first time you tried an apple it was rotten. Yeah, maybe you'll have a slight resentment against them, but to think that every apple in the world will be like that when you go to eat it is ri-dic-u-lous.
Q: Are you good with swapping out Of Mice and Men for Twilight, for example?
A: I am not good with swapping anything out for Twilight, for example.
As for "real world" preparation, to sound redundant, it depends. It depends on your job whether or not genre fiction will be helpful in any way. I agree with Melissa Thomas that fantasy should be greater valued. Fantasy lets us escape (I know, I know, we've all heard that before) but seriously. Reading historical nonfiction will give you an escape but unless you're reading a creatively written work or really love nonfiction, you'll probably be bored to death.
Laura Miller says "There's that unwritten schism that literary writers get all the awards and commericals writers get all the success." I find this true, especially among recent bestsellers like, forgive me for mentioning it again, Twilight (sorry, Twi-hards). If it's popular and accessible, authors will churn books out like butter and readers will devour it like hungry, tasteless savages. Then proceed to build a franchise based on fluff and easy, simply-written reads.
