Just Not Enough Nothing

I was reading a bit of Robert G. Ingersoll and he pointed out something that I hadn't realized.  God created the universe and man out of NOTHING.  However, when it came time to make woman, he had to take one of Adam's ribs to do so. Why couldn't he just use some more NOTHING?  Perhaps, he was trying to emphasize woman's dependency on man. Because in this case, woman would not exist if it hadn't been for man. Also, after creating woman, God brought her before man for his approval. I mean like, if man didn't approve, would God have destroyed the first model and tried another? It didn't matter what the woman thought.