To me, as a player, I find it is my duty to make an effort to integrate myself into the story as presented by the GM. In particular, with pre-made adventures where story hooks are often necessarily generic or shallow so as to accommodate the impossibly wide range of adventurer types.
Sure, I could be a jerk and make the GM's job more difficult. I could harrumph around insisting my special snowflake character would never want to participate in <INSERT PLOT HERE>. But where's the fun in that? I'd rather come up with something in-character to explain why I'm getting interested. Not to be so inflexible. If this makes the GMs job just a little bit easier, (s)he has more time to make it more fun for us.