He does not want to help the world

The MCU’s biggest ruse on Marvel Comics readers was a radical shift in the inspiration behind Thanos’s Mad Titan behavior. Thanos is a fictional eco-terrorist who, in the movies, believes that eradicating half of all life is necessary to prevent the collapse of society as a result of resource depletion.

The logic behind the idea is extremely convoluted, but in theory it might be very generous. One gets the impression that Thanos sees himself as a savior of the cosmos, even if he plans to achieve this goal through unspeakably awful ways. However, Thanos’s motivation in the comics is much more selfish and outlandish. He plans to wipe out all life in the universe to win over Death, the personification of death he loves.

During the credits of “The Avengers” in 2012, this inspiration was mentioned. Thanos turns and smiles as his servant tells him that “to challenge [humans] is to court death,” implying that he approves of this course of action. Since the authors of “Avengers: Infinity War” thought that explaining Thanos’s bond with Death from the comics would be too difficult for casual viewers to grasp, they altered the film’s original objective.