Thanos, however, is a spectacular exception. Not only was the extended build-up of his presence unique, but his arrival on the main stage is unprecedented. Case in point: he is the only Marvel Cinematic Universe villain to have his own film. His name may not be in the title, as is typically the case, but there is no denying that Avengers: Infinity War is his movie, as it is his arc and his actions to achieve his goals that motivate the whole plot. Sure, there are moments when it looks like Thor is going to come in and steal his thunder (pun 10000% intended), but the icing on the cake is that he gets what he wants when all is said and done and successfully eliminates half of life in existence. It’s hard to ask for greater capitalization of a blockbuster heavy.
Article source: https://www.cinemablend.com/news/2547262/did-marvel-get-the-most-out-of-thanos