Lets consider possibilities for a second, which this all comes down to anyway. A "perfect" species wouldn't eat other animals, it wouldn't destroy it's own home, it wouldn't require material possessions, it wouldn't require regular doses of worldly compounds and chemicals. The concept of what is perfect can be broken down by understanding the pursuit of contentment, in which we always strive for more, yet perfection is closer to the lack of need. Take for example tardigrades. They lack the negative qualities mentioned above. They thrive off dust, don't cause warfare, outnumber us by the billions and can survive in volcanoes, solid ice and in the vacuum of space. Considering it's a product of its own evolution and likely came long before us... Isn't it a bit naive in the slightest to deem ourselves not only better, but more intelligent? We are aware of our intelligence and judge it our way. We can't apply the same ethics to judging other species.