Perhaps because it'd want to survive and to multiply...?

How are you and your goals involved in that machine being able to survive and multiply? You are made of carbon which that machine might put to better use.

How have you not been hit by a car yet? Cars move very fast, and are made of steel while you move very slow and are made of carbon.

...are you suggesting cars can make conscious decisions? If not, then what exactly is your point?

Why do any of the machines that we make do anything?

Because we designed them that way.