Why does any non-supervillain even try to rob banks in Metropolis anymore? Its been fifteen years, guys, you should have gotten the word by now. Its not even like being a street criminal in Gotham, where you can at least take comfort in the fact that if Batman is busy busting somene's head on the other side of the city, that means he can't also be busting yours. Its Superman. He can be stopping a kid from falling in the river 30 miles over, hear you shooting at the bank teller, and be up in your face catching the bullet before its even halfway across the bank. What, did Cleveland or Buffalo or some other nicely non-superhero-possessing city run out of money to go steal or something?
- Super Hearing doesn't mean he can hear stuff before the sound can reach him.
- From an economic standpoint, there's probably more money in Metropolis banks due to both the presence of Lexcorp and of the world's greatest hero. As such, some enterprising criminals are willing to take the (high) risk of being stopped by Superman on the off chance he might be somewhere else doing League business, in which case they make off like kings.
- In JLA/Avengers a Genre Savvy criminal named Loophole actually takes advantage of a Justice League emergency to knock over a few Metropolis banks, knowing Superman will be occupied for the time being. A good plan, and it would have worked if the Avengers didn't happen to coincidentally pop out of a boom tube right next to them...
- To quote from the Friendly Enemy page:
In one annual collection of short stories, it's made into a gag where a member of a gang of bank robbers' opening question "Why Metropolis?" (of all cities to rob a bank in), is answered, after a long discussion about those assholes in Star City, Keystone City, and Gotham, when Superman catches them and politely hands them over to the police while recommending the Metropolis reform program to get their lives back together: "Because when he catches you, he's not a jerk about it."
- If Superman can be killed by some desperate criminal/low-level villain, then he wouldn't be able to stop cosmic-level threats. And event then, there are guys like Shazam, Wonder Woman and Green Lantern who could fight them off instead. Plus guys like Luthor could make their own versions of Superman to protect humanity.