It seems to me that too much of the focus of ultralite backpacking is on carrying less so that you can go farther and faster. Since I've lightened up, I haven't travelled much farther in a day that I would have before; I just enjoy the trip more and arrive in camp less exhausted. I stop frequently for breaks to take photos or just to sit in a beautiful spot. I can take small hikes away from camp since I have energy left over.
I don't think that speed, in itself, should ever be the goal in backpacking. The folks who are in such a hurry that they urinate while hiking are missing the point, I believe. Can you really enjoy yourself if you can't even stop to pee? How can you possibly take in the sights and sounds? I suppose to each their own, but I really feel like those folks are missing something. To me, the purpose of going into the woods is to get away from the "rat race" of society, not take it with me!