Tell that to an insect being eaten by a frog, or to that same frog being eaten by an eagle. Being on top of the food chain sort of gets you out of touch with the realities of Nature. This would probably be cured if we were visited by space aliens that liked Human croquettes or Baby Parmegani. Natural is better than artificial. This is a truly stupid myth.
Man is outside of nature.
This benighted piece of medieval philosophy is still circulating in our advanced society. In fact, it is the cognescenti and intellectual liberals who purvey this nonsense the most. If two billion years of evolution have led to humans, it has also led to each and every one of the millions of other species. The only thing that really separates us from the rest is that we chatter and beeble about our place in the scheme of things. The problem with environmental regulation is not that regulating our poluting behavior is a bad idea, it's just that we don't have the foggiest idea how to do it.