Interviewing
          Leather: 
The
        central assumption of economics is rationality, the assumption
        that individuals
        have objectives and tend to take the actions that best achieve
        them. As Leather
        puts it:
“Any time
          you make an effort, you’re
          trying to receive some kind of reward. That’s human nature. We
          do the things
          that benefit us.”
But
        what are those things? What counts as a benefit? If we know
        nothing at all
        about objectives, the rationality assumption has no predictive
        power, since
        anything at all that someone did could be explained on the basis
        that doing it
        was his objective. We solve that problem by vague but plausible
        assumptions
        about what people want, based in part on observation, in part on
        introspection—money, health, food, housing, … 
        . 
The
        author of this story has a problem—how to make the behavior of
        supervillains
        and superheroes plausible. Elaborate fight scenes and witty
        dialog make
        dramatic sense, produce comic books people enjoy reading, but do
        not look like
        a very practical way for a super powered criminal to make a
        living. 
The
        explanation, for Leather, is that while she makes her living by
        stealing stuff,
        making money is not really her objective. Her objective is to be
        a celebrity. She
        achieves it by stealing stuff, if possible in dramatic ways. A
        few years
        earlier, she tried to achieve it by fighting criminals. The main
        reason she abandoned
        the superhero profession, by her own account, was because she
        concluded that as
        a superhero she would never make it to stardom.
“Anyway.
          Here I was. Going out, working
          hard every night. And there was a night I took out two super
          thugs. Red Beast
          and Shocker, if you keep up. Anyway, that fight hurt. I was lucky
          not to be hospitalized.
          But I managed to stop them. Get them locked up. And saved a
          whole crowd of
          people.” She took a long drag off her cigarette. “I got page
          four of the Bay
          City Chronicle.”
“When I was
          Dynamo Girl, I could barely
          get page four. Leather makes the front page whether she
          gets away or goes to
          jail.” 
Once
        you recognize her objective, her behavior makes sense. She
        designs the blow
        off, the prestige job, her final heist before leaving town, to
        pull in Darkhood,
        a superhero at about her level, hence a suitable opponent for a
        high profile
        fight. She ends the fight leaving behind seven million dollars
        and the Mountbatten
        Urn. 
After
        putting on a show that will be remembered for years.
So
        much for the motives that explain the behavior of one
        supervillain. What about
        the heroes? For some, the answer is the same–status, prestige,
        stardom. For
        others, especially lower level ones such as Darkhood, neither
        material rewards
        nor status are a sufficient incentive. 
“And if you beat him? I mean, take him fully
      down, stop him
      entirely, and humiliate him?”
Leather shrugs. “Then he’ll have to rethink his
      line of
      work. And if he can’t hack it, he’ll do something else with his
      nights and the
      world will be better off without him.”
“And if he can hack it?”
“Then he’s the real deal, and he’ll be stronger
      next time,
      and when our paths next cross it’ll be glorious.”
…
“So you fight her,” I said quietly. “And you
      drive her off.
      Or you put her in jail. But you know she’s going to get away or
      break out. You
      know that. How do you keep doing it?”  He
      looked at me. “Someone has to,” he said.
Darkhood is the real deal.