People will disagree with you on that, but I think such disagreement misses a crucial observation - economic value was highly correlated to the value for humanity. But as we took all the low-hanging fruits we can see those two senses of value increasingly diverge.
Hell, for a simple analogy, it's like with solid rocket boosters - you should appreciate how far they got you, but you definitely don't want to keep being attached to them when they burn out and decide to not go to space.
