Generally agree with you all, although to be slightly fair to the MCU, the more recent comics it's based on (or inspired by) have also been pretty bad about keeping the characters' stories grounded in some recognizable semblance of humanity. It's been one of my own ongoing complaints, that most of the superheroes spend more time around other superheroes (or agents of S.H.I.E.L.D. or some other clandestine government agency) and are increasingly secreted and isolated from the civilian masses they protect, thus leading to a kind of alienation and/or emotional disconnect that renders them oblivious to the effect their (more dubious) actions have on those civilians.