What do meditation people do with their great powers of attention? Besides for naval gazing of course.

I think it can help you relax. A lot of meditation involves focus on breathing, can keep your heart rate down, etc., and I think that may be good for general health.

But I don't think it should be confounded with medical advice or treated as causal to neurodiversity or called mandatory. Probably why that person is getting downvoted.

What do all the jungle civilizations and any possible intelligent extraterrestrial life do?

Stay away from us to their own benefit, of course.

They study it, thus gaining a better understanding of it.

They become more familiar with it, thus replacing habit with intelligence.

This leads to increased power and freedom, among other things.