"Even when those mistakes nearly destroyed all life on Earth?"
The satellite is armed with weapons that could destroy whole cities on Earth from afar.
A wandering black hole is approaching the Solar system, and will surely destroy all life on Earth.
He is erased from time when his last work is destroyed on Earth.
He decides to cancel the plan to drain the oceans because it would destroy life on Earth.
They proceed to destroy military sites and important infrastructure on Earth.
He was gone, and the means to destroy all life on Earth was with him.
Could an extremely powerful solar flare destroy all the electronics on Earth?
World leaders today have the power to destroy all life on Earth.