Yes and bacteria is another. Without it life would not exist!
What about electrons? Without them material would not exist!
But if life did not exist how would anyone know it's chaotic?
Imagine if there were no wheels, for example.
Or in the next solar cycle a super X100 class coronal mass ejection directed right at the planet takes out all satellites (no gps/tv/etc.). The electrical surge is so great that the power grid fails and even some fires start. Cars run until they're out of fuel and there is no electric to pump fuel. No phones, no Blackberry, no computers. Sure the guy on the hill with the windmill MAY have power providing he did not get damaged. Kind of hard to do anything on his PC. Play solitaire all day long?
Yeah people would still be alive in a new chaotic world if that happened. Scary thing as a variant of it is possible and the chance is much higher than a terrorist delivering a nuclear weapon to a major population center in the United States or an all out exchange of thermonuclear devices between the East and West, etc.
They way I've seen people depend on GPS to get places these days - losing the satellites could be fairly chaotic! How many people know how to read maps or keep them in their cars these days?