Again, "science" is a misnomer. "The sciences" is more accurate, since scientific inquiry involves hundreds of thousands of different fields of study.
Besides, no. The sciences feed in on each other, sure, but at worst their purpose is the satisfaction of someone's geeky curiosity. Not generally a bad thing, because such satisfaction is pretty much what created the Information Age we're transitioning into now.
Most of the time, the sciences have specific goals of their own, but the general goal is pretty much the same among all of them: make life better.
Mske life better or make the experience of life uniformed