Injustice, I feel, kind of touches on an elephant in the room that comics try very hard to ignore.
Specifically, the reason for superheroes is because the authorities come in three flavors, worthless, more worthless, and actively malicious. A government that did its job would negate any reason for Batman to go out in a fancy suit and fight individual muggers. The super prisons leak like a sieve, the justice system is incapable of even managing to capture, much less prosecuting, the Joker or various other weirdos, many of whose entire superpower consists of wearing a costume.
Logically speaking this leads to only one outcome, the authorities get removed and replaced by a new government actually capable of protecting their citizens, the people should not and in a reasonable world, would not stand for being led by the equivalent of infomerical humanity. However the story the comics are based around isn't normally Superman taking over the world and ruling as God-Emperor so they jump through all manner of hoops to keep the government in charge, while also having to jump through an equal number of hoops to make sure the government can't do anything without Superman holding their hand.
This doesn't actually happen.
You see, superhero comics originated in times and places where a "masked vigilante going after criminals" didn't actually see so far fetched given systematic corruption of the criminal justice system at the time. Look at the initial two boom era for the origin of superhero comics: the 1930s and 1970s. Both of these times were noted for the widespread corruption and soft of crime attitudes by the elites, corrupt and ineffective police forces where it was a reasonable response for someone to kind of force the issue, cut through the corruption and basically make it so that the police couldn't avoid doing their job.
Gotham city isn't actually noteworthy for it's level of corruption, New York in the 70s, Chicago... well just fucking Chicago, LA, or Washington DC of the 1980s all gave Gotham a run for it's money in the amount of crime going on.
I would also point out that we're living through one of the largest crime booms since the 1970s right now, give it a few more years, especially in the big cities, and vigilantism is likely going to be seen as a viable recourse once again, and masked vigilantism especially given how protecting one's identity not just from criminals but also the Twitter cancel mob for going after protected classes (whom happen to be criminal) is developing.
Just as with these previous cycles, eventually the situation will get so bad that "tough on crime" attitudes will once again dominate politics as they did in the 80s and 90s, which will again result in massive diminishment of crime as they did in the past. We might even see a major boom in superhero crime comics again, though not from Marvel or DC...
Man, I wish I could draw... a modern superhero working in the modern world attempting to avoid their identity not just to avoid the criminal elements but the Twitter mob attempting to cancel them... that might actually make for an interesting twist.