He's a psychiatrist, not a psychologist. There's a difference in degrees - MD vs PhD. As a psychiatrist, he might bond with Harley who is also a psychiatrist (there is some confusion, but it's pretty clear in some stories that she is an MD). They could open a joint office and practice for psychopathic villains and probably do quite well. Tony Soprano had a therapist, so there's a market for such, I would think.
Or he could get job at Arkham, and then the super villains seem to just die or kill themselves (or each other being edged on).
That's something I wondered. He's a brilliant psychiatrist, and he'd live here in a city where even the regular populace lives in a cloudy city stressed by crazy crime. Lecter might well mostly make a killing on that and even speak to several Arkham inmates before anyone figures out what he is.
Um no they don't yes they get rec time but they don't get to Rome free or anything also yes it is a revolving door but they do have to work on getting out they don't just walk out anytime they want some can't escape right away and stay for awhile do you for real think the Baltimore Hospital is harder to escape than Arkham a place that holds active super power villans a place that holds guys like clayface for a long time?
I mean you do know it's only a handful that get out on a regular basis right? There's a ton of others that don't get out.
This is exactly what Lecter would do, except he'd only kill the ones he found gross or uninteresting. I can see him playing games with the inmates' minds, setting certain of them loose upon Gotham. Why? To see what they would do after he primes them a certain way.
Anyone who's seen the TV show knows how much Lecter loves to "prime" his patients in certain, particular ways.... "The significance of the moth is transformation." Lecter would help them ... transform.