I think that depends on where you see purpose in the universe. Most people would see people, and their emotions, as the most purposeful things in the universe. I think if there were creatures with greater emotionality then people, then we would think of the universe being created for them.
Another way to look at it, is to look at the earth, as it is now with modern development. Obviously people have massive impact on the earth. Perhaps later people would have massive impact on the entire universe, in the same way they have on the earth.
regards,
Mohammad Nor Syamsu