That ice is very valuable stuff in the asteroid belt. Water is something we humans need quite a bit of.
Hydrogen and oxygen.
I know. I was tired and typing silly.
Of course you are right. The solar system is full of valuable objects that will play an important role in our expansion into solar system space at some time in the future, once we get our collective heads out of our collective butts and start acting like a species capable of colonizing nearby space.
(And by that I mean strengthening Western Civilization, not weakening it.)