Answer:
Well, from the outside you may think it's useless, or it's not helpful, or it doesn't so anything. But, when you look back at it, you can see that that thing allowed something good to bud (hah, no pun intended) from it.
Explanation:
This is just what I took from it...
I would say that equality in hunter-gatherer societies has a huge implication for the modern world.
The hunter-gatherer societies were the "original" societies, to which the humans evolved and the finding that the societies were much more egalitarian (both in terms of gender equality and social class equality) means that people cannot claim that inequality is somehow "natural" - it supports the need for equality in the modern world.
Endangered, rare would really give people the idea of this problem and the word decline.
