|“|| Flash: I can never figure you out! One minute, you're a hero, the next you're a criminal!|
Catwoman: I'm a complicated woman.
|~ Catwoman, when The Flash calls her out on her constantly changing alignment.|
None of these characters are Pure Good as it's impossible for an On & Off hero to be such as they are totally impossible to be bad or evil.
Although some of these heroes may never fully corrupt themselves; they are never Pure Good, even if sometimes they come very close.