Well, I do not agree with this. Yes, we are using material originated by others, but we are using it in a new way.
If I were to design and sew a dress (not very likely), it would be
an original work, even though I did not weave the material myself.
The way I see, originality isn't so much using new material as it is using the material at hand in a new way, and adding a few personal touches.