Unless you can prove that humans are becoming more content or happier, then I don't think this proves anything. If we have massive advancements in technology but we're all still angry, xenophobic, selfish, etc, nothing is getting better
Even if we're exactly the same amounts of angry, xenophobic, and selfish, it's still a better world if my (hypothetical) child has a much greater chance of surviving into adulthood, and not having to deal with that loss. I would challenge you to somehow defend the notion that it isn't.
Or how about the axis of freedom? Even if we're the same amount of angry, xenophobic, and selfish, but are more free, that's still a better world.
If you're going to prioritize just a few very narrow aspects of life, you need to at least explain why these other measurable things have no significance.