I didn't think the movie was that bad. I like it and it was the first Superhero movie to play the concept more realisticlly, hell the movie is my cousin's favorite superhero movie. So overall I think the movie gave the character more attention by the general public, though with the movie rights back with Marvel, I think that a reboot or contiuation of the character in the Marvel Cinematic Universe would only help more.
Now I don't pretend to know much about utilitarianism but here's my take.
Based on the basic question and the stated reason behind supporting said line of thinking (since I can't guage if your condoning the line of thought posed by your question or not) I would like to quote SF Debris in his "Star Trek Voyager: Time and Again" review.
"...With that kind of logic, you should never get involved in anything. If a person is trapped under a piece of fallen masionry in an alley and calls out for help, you should ignore them. After all if you save them then they could go one to marry and have children and one of those children could grow up and wind up joining a group of wackjobs and help some plant a nuclear warhead in a major city, killing tens of millions of innocent people... or maybe they'll just live a long and happy life."
To make another briefer quote: "Hindsight is a bitch". There was no way for Matt to know that saving the life of an old man would have such negative reprocutions. It was one good act that resulted in something bad happening that wound up being a bad thing in the long run but cundoning the death of one just because that ended badly for cercomstances Matt couldn't possibly forsee would probably condone letting others die because you don't know if saving them will comeback to haunt you as it did in one instance ("No good deed goes unpunished," that's the Marvel U's motto). Really you can ask the same question of "Is it moral for the Avengers to costantly save a world where guys like Magneto, Dr. Doom, Kang, Venom, The Leader, Cletus Kasady, Juggernaut, Red Skull, Bullseye, Norman Osborn, Hundreds of Punisher villains and everyday @$$holes who molest their daughters live and infect the universe at large?"
Also there's the fact that this even played a key role into Matt becoming Daredevil so let me pose the question of if Matt didn't save that man and all, what if he never became DD as a result? All the people Matt saved, inspite of the personal loss he suffered that would make Spider-Man grimace in pity. Would those people have lived to see their families, friends, lovers or children? What about those villains that DD seems to have run ins with? Would Spider-Man, Moon Knight or The Fantastic Four have been around to stop the plans and actions of guys like Kingpin, Bullseye, Mr. Fear, The Hand, Typhoid Mary or Purple Man if Daredevil never existed? Or worse yet, what if the death of her father drove Maggie to seek vengeance on the crew world that took her father from her with nothing but a costume and a gimick in a world where a guy with a skull t-shirt can go around killing millions a year?
Matt's feelings over what he did are understandable but are born out of the 1:1,000,000,000 chance something like this would happen. It was a tragedy born of a good deed and to say "that sucks" would be an insulting understatment but this is the kind of risk he takes everyday by saving people he doesn't know. That's all that Matt or any hero can ever do, just doing what they think is right and hope it pays off.
Civil War-I think Civil War was a good idea, mired by the moronic writting of Mark Miller. Cap and Iron Man being idiots is what would have made that story work, BUT the story must be told to SHOW that both sides where being idiots! I think the main problem with Civil War is that most western writers aren't used to writting Grey-and-Grey morality. I think Ultimate Alliance 2 was the idea done right (albitet a bit more tweeking would have helped).
Schism-I haven't read i Schism so, I'll take your word for it.
AvX-Ok this one... there is NO DENYING that this was a dumb idea from the beginning! The only way this could be done was if it were tongue (the entire goddamned thing!) in cheek. Cyclops and Captain America were both the epidome of MORONS!