Uatu The Watcher only observes. Despite having Godlike abilities, he has decided to never intervene. In the latest What If episode, he finally did. But he could have done it a long time ago and spared many the trouble.
The Watcher Could Have Never Let The Zombie Apocalypse Happen
When Hank Pym went into the quantum realm to bring back Janet Van Dyne, he brought with him more than he had bargained for. A quantum virus from another dimension set upon the Earth a zombie apocalypse that could potentially infect the entire universe. A zombie Thanos would most likely use the Infinity Gauntlet to bring more chaos.
He Could Have Stopped Hank Pym From Killing The Avengers
After Hope’s death, Hank Pym donned the Yellowjacket suit and killed all the heroes before they could form the Avengers. Because there were no avengers, Loki conquered the planet with Ease and is now the new all-Father of Asgard. Who knows what will happen next in this reality.
Uatu Could Have Stopped Quill from Ever Meeting Ego
With T’Challa becoming the new star Lord, Peter Quill never took to the stars. he was a lowly employee working in a dead end job when Ego meets him. His plans for universal expansion would most likely succeed now that this universe’s Quill is an easy target.
The Watcher Could Have Prevented Doctor Strange From Going Rogue
Doctor Strange’s attempt to bring back Christine from the afterlife was what led to the downfall of that alternate universe. The Ancient One had warned that Chritine’s death was an “absolute point” in time. Uatu watched as Doctor Strange went back in time over and over again till he finally went rogue. He could have prevented that from ever happening.
Uatu Had The Power To Save Evil Doctor Strange’s Universe
After evil Doctor Strange absorbs his other half, he realizes he truly cannot save Christine. but his actions have resulted in a paradox that will kill the universe. He asks Uatu the watcher for help. The latter refuses to do so even though he does possess the power to undo this.
Could Have Saved Wakanda From Killmonger
Wakanda was duped by Erik Killmonger in the grandest way possible. He first tricked Tony Stark into doing his bidding and then killed him. After killing the Black Panther and deceiving his homeland, he is finally on track to take over as the ruler to one of the most powerful nations on Earth. Killmonger’s original plans were to incite chaos all across the world in his quest to defend the oppressed. Now with Wakanda’s infinite resources, his dreams of another world war finally come true.
Should Have Helped The Avengers In Mainstream MCU
Since the Watcher can look at all possible realities, he could also look into the original MCU. He knew all the events that had, are, and will happen. So he could have prevented a lot of deaths and pointless sacrifices if only he had broken his solemn oath of non-interference sooner. In an instant, one small act of interference would have spared an infinite amount of suffering that came after the Snap and the Blip. He did not use his position and powers well.