Looking at another classic superhero film, the whole point of 2002's Spider-Man was that a hero's responsibility is to save everyone.
Spider-Man was not dealing with a super-powered villain who had Zod's capabilities. There's no time to consider saving every life, because that's not sensible, or possible in the situation presented.
It does if the character is being moved from a fantasy land where he's always smiling, slapstick comedy happens every day and he's implicitly trusted by everybody to a somewhat more realistic world. The film highlighted the flaws with Superman's older movies.
Excellent point, which is why the Salkind films aged badly not long after they were released; the slapstick and sitcom-esque shenanigans gutted a superhero movie of one of its most defining traits: the hero fighting, even when the odds are against him being able to save everyone. Anyone expecting grinning and rainbows at the end of every superhero film obviously lacks even a basic understanding of the genre.
The sharp divide between people who saw him as a saviour and those who wanted him gone in BvS is pretty much exactly how I see our world reacting to Superman.
Which is the reason why Man of Steel--unlike any Superman production before or since--successfully captured how a Superman situation would work in the world, as opposed to cartoon love-fests / seeking Daddy figures.
Oh, you just have to love how someone else in this thread now bitches about staying on topic, when he's spent several pages talking about everything other than S&L here and in other threads. Typically hypocritical behavior.