I remember that scene being posted here, and I actually found it a little annoying because it's nitpicking something which is, as you said, a staple of the superhero genre. And honestly I prefer seeing (certain) superheroes out on patrol taking on semi-real problems or thinly veiled allegories to the alternative that we've seen in recent years, of having all the superpeople only ever hang out, interact, or fight with other superpeople, which sets up a creepy little elitist community that plays by its own rules.

I'd actually disagree with your point about more street level superheroes, because as the most recent Mighty Avengers series argued, what else are they going to do? Sure a character like Tony Stark or Bruce Wayne can help through financial and other means (and are frequently shown doing so) but for characters who are just sorta tough and/or good at punching things, their skills aren't really useful for anything other than punching things, so they might as well just punch the people who deserve it.