I think it's important to make a distinction here. I absolutely agree with Jason's view that the "ability" of the listener to perceive patterns of sound can make the work highly memorable - to the listener, should the listener be interested in the idea. Additionally, the pattern need not sound "traditionally tonal" or what-have-you. It may be entirely practical to look at it from the standpoint of expectations at that point. If the listener expects the work to repeat less, to NOT use tonality, to not sound romantic, classic, et al, then this is also quite amenable in my view.
What I take issue with is poorly crafted work, work that does nothing to identify itself or bother to even attempt to connect with a listener. Then, I see this pretentious approach alongside some article discussing how the "art/serious/modern music community needs more support," (see Babbitt, et al) which then goes on to practically "blame" other genres of music for how desperate their plight is... and that, I must say, is offensive to me. It's even more offensive to see some pretentious composer out there take swings at the work of other artists like songwriters and film composers.
Quite frankly, if the masses are looking for music and finding something worth listening to in commercial tunes and soundtracks, then I don't see anything wrong with it. If you are composing to put your name into the history books (and this is entirely my opinion), you better be able to incorporate what it is that the masses are seeking. From an Anthropological view of it (and Jason, dispute this if you think it's entirely invalid), the music we study today was the music that, perhaps, "revealed" social trends of the past.
In other words, Beethoven wouldn't have been Beethoven if he completely ignored the expectations of the audience. Neither would Mozart. It just so happened that they not only knew what those expectations were, they quite competently manipulated their music to delay resolution of those expectations, using them in a way that almost created its own consonant/dissonant relationship. Here we have these kinds of precedents up until around 1920, but composition studios at the academic level have seen to it that these precedents are avoided at all costs for the sake of staying on the "one and true" path of artistic exploration... teaching many of us to ignore everything else, tunnel our vision, and find our own, unique voice/syntax of music.
Sorry, I can't see how we can derive inspiration from a vacuum... we simply MUST be willing to be part of the world if we hope to one day represent something of it in our work, something that connects what we do with our culture, our society, and our perceptions of human civilization at this moment in history collectively (as much as it can be, anyway). We can't do that by ignoring all that precedes us, and we certainly can't expect anyone to listen if we're not doing our part to connect with the world.