10 Times The MCU Was Right To Forget The Source Material
10. Changing Thanos' Motivation - Infinity War/Endgame
There can be no doubt that Thanos is the greatest villain that Marvel have ever brought to the screen. He was powerful, intelligent, and most importantly, had a strong motivation for doing what he was doing.
This was done expertly by all involved, as it could have gone in completely the other direction had the writers decided to keep closer to the source material.
Throughout his history in the comics, Thanos has always had close ties to the infinity stones. He searched the universe to find them and wanted to assemble them all in his gauntlet to snap half of the universe's population away, but it was his motivation that was different. While the MCU version was doing such an act to save the lives of those he didn't dust, the comic book version of Thanos simply wanted to impress Lady Death.
The personification of death became something of an obsession for the Mad Titan, and he wanted nothing more than her attention and affection. He sought to serve her by sentencing half of all life to death, a story arc that would have been far less compelling when translated on screen.