I agree on the Jackal. I found the overall story pretty meaningless, almost a tacked on afterthought. Very underwhelming indeed. But the actual character of the Jackal is definitely a step in the right direction for video game storytelling. Sure, it's not quite on the level of the ideological, philosophical nightmare that is Bioshock (the first, let's just pretend the shameless cash in Bioshock 2 doesn't exist,) but it was obviously trying.
The ideas presented by the Jackal (him presenting a cancer the tools with which to kill itself) does have some bittersweet reminders of being a 16 year old, having just seen Fight Club and thinking myself some sort of anti-consumerist misanthrope and closet philosopher (hey, I did say I was 16) but for what it's worth, it tried, which is rare in video games. If it had been less watered down for consoles and structured with a bit more love and care, and a bit more developed story and theme-wise, it would have been fantastic, but as it is, it ends up falling quite a ways short. But either way, it pushed boundaries with its undying devotion to immersion and managed to include some fairly forward thinking ideas through the character of the Jackal (for a video game at least,) and it definitely has my respect for that.