Superwoman

Why not noble and heroic versions of the most terrible villains of DC Comics formed the super-group of heroes of Earth-3 Justice Underground? Type equivalent noble and heroic, of: Bizarro, Black Adam, Parasite, Mongul, Mongal ,Despero, Sinestro/Parallax, Doomsday, Major Force, Lion-mane, Cheetah, Deathstroke, Ares, Circe, Poison Ivy, Clayface , Killer Croc, Bane , Ra's al Ghul, Vandal Savage , Scandal Savage ,Monarch,Morgaine Le Fey, Gorilla Grodd, General Zod , Ursa and Non, Cyborg Superman, Livewire, Killer Frost, Rampage, Lady Shiva, Dr. Light (Arthur Light), King Shark, Black Manta, Joker, Two-Face, Giganta, Doctor Polaris, Ultra-Humanite, Solomon Grundy, Kryptonite Man, Metallo , Ma'alefa'ak , Atomic Skull, Shadow-Thief, Prometheus, Star Sapphire, Shade, General Eiling ,Copperhead, Riddler , Lord Satanus , Blaze ,Fernus, Toyman, Harley Quinn, Ocean Master, Silver Banshee, Felix Faust, Lady Tala, Reverse-Flash (Professor Zoom) among others ?

And why not a "super-group competitor" to the Crime Syndicate of America formed by evil versions of the Justice Society of America? Type versions malignant of : Superman (Val-Zod), Sentinel / Alan Scott, Jay Garrick, Atom Smasher, Hourman, Starman (Prince Gavyn), Jade, Obsidian, Hawkgirl, Doctor Fate, Power Girl, Fury (Hippolyta "Lyta" Trevor-Hall),Wildcat, Amazing-Man (Markus Clay), Doctor Mid-Nite (Dr. Pieter Cross ) Stargirl, Jakeem Thunder and Thunderbolt , Black Canary, Citizen Steel, Jesse Chambers, Tomcat (Tommy Bronson), Air Wave, Blue Devil, Cyclone (Maxine Hunkel), Darknight, Iron Munro, Batgirl (Helena Wayne), Manhunter (Kate Spencer), King Chimera (Mon Roi), Lightning (Jennifer Pierce), Magog (David Reid), Mr. Terrific (Michael Holt), Red Beetle (Sara Butters) , Shining Knight (Sir Justin), Aquawoman (Queen Marella of Atlantis), S.T.R.I.P.E. (Patrick Dugan), Sandy Hawkins, The Spectre (Crispus Allen), Uncle Sam, The Ray (Stan Silver), Northwind (Norda Cantrell)?