The point of such a story would be trying to find them. And all the amazing places they'd take us to in pursuing them, and all the shady connections they have in maybe smuggling, espionage, black market deals, etc.
Though, of course, we'd have to incorporate superpowers somehow for it to be valid, so I doubt it'd work here.
“…Judge not what a man has done, but judge what he could have done if he was a different bloke altogether. For art thou a leper? And a leper can changeth his spots…” --Rudy Wade, Misfits (Series 4, Episode 8)