Why do we need dugongs?

Why do we need dugongs?

"Wherever they survive, dugongs play ..." from the WWF Australia webpage.

It's the classic bad question.

Why do we need Humans?

Well I may need humans, if for no other reason than to hang out with and breed.

So on the same logic Dugongs need other Dugongs for the same reason.

But the bigger question "Why do we need Humans?" has no answer. The universe would be fine without humans. It would make no difference whether we existed or not. And the same is true for Dugongs.

So what is this question supposed to mean? It's not clear.

For some reason WWF Australia has given an answer. But I think that is misguided. Just ignore the question.

Another similar question is "what is the use of wasps." Well wasps are really useful for other wasps just as humans are really useful for each other. But just like Humans, Wasps have no absolute use. They just are. We respect the world just as it is before asking for secondary usage.