Other than Sawyer, how did Jacob's interference shape any destinies? One theory is to presume they don't show us every "touch" - meaning Hurley and Sayid were probably visited earlier as well, otherwise their stories don't make a shred of sense.
Kate gets told to be a good girl, yet she turns out to be badass. Is the point here that if he hadn't bailed her out, she WOULD have been a "good girl"?
And Jack getting a candy bar changes his entire future? what.