the why doesn't need a cognitive or narrative motivation here.

why are volcanoes important to hawaii? because without them there'd be no hawaii. a fortunate random circumstance.

likewise, jupiter flexing the orbit of so many roaming bodies means we are offered a mild protection from more potentially dangerous objects flying around.

that's why jupiter's tendency to pull moons is important to earth. even if the why is ambient.

What do you mean thought process or plan? There isn’t a deity.

Of note is that we’re obviously under the right conditions that an ape can look up at the sky and wonder. That’s random but we seemingly won the lottery.