I think the fans reaction is that Superman should help people as an end in itself, not for approval. And yes Superman might be sad the people don't trust him, but it wouldn't stop him from going around and trying to make things better.
I actually think MOS demonstrated that side of him since even after the hilarious tornado scene convinced him to stay hidden, that altruistic side of him kept coming out naturally in scenes like the oil rig scene, the bar intervention, etc. (though I don't think Superman is petty enough to go destroy the guys truck, which doesn't improve anyone's life, and might encourage the driver to be even more of a dick, but is really just for Clark's self gratification).
In BvS however, we never really see Superman go out and try to improve the world. We see him save his girlfriend's life yes. We see him take an extremely antagonistic stance on Batman because he believes batman is making things worse, but that's not quite the same thing.
And I do like the fact that Superman did sacrifice himself for the safety of the world, but so much of the movie is focused on other stuff. So much of the personality we see of Clark is negative. That's one of the problems with making 1 movie out of 2-4 different incomplete ones. We were never really introduced to that really important aspect of Clark's character because it's smothered to death in side-plots, action spectacle, other characters, etc.