Annihilating the eco system we life in demonstrates that our intelligence isn't that good, and doesn't seem to showcase it's a powerful force for long-term survival.
Of course there are plenty of metrics by which other species exceed humans, even some cognitive ones, and human intelligence in the end might just mean quick world domination followed by a quicker extinction, but the power and planetary supremacy that it endowed humans with in a cosmic blink of an eye is undeniable. No other species even comes close.
Ecosystem-destroying catastrophic behavior isn't unique to humans, either. We are the only known form of life that can bring it about on a global scale, reason about it, and have the potential to consciously avert it.
