Marvel must be doing something right, because their last film made over 2 Billion dollars. Marvel has found a formula that works and allows them to expand their set of characters and put them in movies of their own. They have used a diverse set of directors and actors to work on their films.

And apparently, people like them. Some don't.

Iron Man was the risk. Marvel's approach of a 15 year cycle of building and interlinking was what worked.

For Warner/DC, they tried the same thing for DC characters and could not pull it off.

Nor could Universal with the attempt to force a Monster Cinematic Universe. Their Tom Cruise Mummy movie failed.

Marvel is getting beat up here, because they are so successful. DC gets beat up, because they have not figured out how to tonally present their movies in a way that can build a franchise.

As to the size of the budgets, they are large because of the CGI that makes the characteristics of the superheros seem more real.

The first modern Superman movie's tag line was: You will believe a man can fly".

The Hope and Crosby Road Trip movies, the Abbot and Costello franchises or the Jerry Lewis Dean Martin movies were all franchises as well. Hell, Rin Tin Tin was a franchise.

We've been here before and will be there again. Studios will milk what works for them until it no longer does, and the other studios will copy the genre and try to get in on the money there.

Or they just reboot something that doesn't have a new story to tell, or has a weak cast or uninteresting story line. That is the business.

You weren't forced to go and neither was anyone else.

As for Scorcesse, he is reviled within the Academy community for some of his films.