What would the villains all do if crime stopped?
The Living Tribunal, the Celestial Host, and Pre-Retcon Beyonder arrive on earth. They decree that henceforth the so-called "supervillains" of earth can no longer carry out any criminal acts. The same goes for the high level organized crime groups and crimelords such as AIM, Hydra, Kingpin, Mr Negative, etc.
They lose all their powers (intellect excluded). All their bank accounts are frozen. All their weapons, equipment, current holdings of cash and valuables, hideouts and so on are seized. They give up any rights they may have as sovereigns. They are left with literally nothing but their regular street clothes (or given some if they don't have any) and turned out on the street.
They must now earn an honest living for the rest of their lives. Any attempt at deliberately turning back to criminal activities will result in them ceasing to exist by order of the cosmic assembly.
So what do these guys do to make ends meet? Choose anyone but a few candidates:
Doom
Magneto
Apocalypse
Kingpin
Thanos (say he is on earth at the time)
Dracula
Absorbing Man
Carnage
Enchantress
Rhino
Blob
Moonstone
Nefaria
Selene
Mephisto
or even DC
Lex
Joker
etc.