This is a question about if Penelope from the Sly Cooper series could gain all the factors required to be classified as a Pure Evil villain character. This is not a request to classify her as a Pure Evil character now.
In Sly 3: Honor Among Thieves, Penelope is a character who becomes a part of the main protagonist group of the Cooper gang. Bentley from the Cooper gang takes a love interest in Penelope and she becomes his girlfriend.
In Sly Cooper: Thieves in Time, Penelope suddenly betrays the Cooper gang and reveals she believes that the Cooper gang morals are holding Bentley back from earning billions of dollars in weaponry. She appears to be a gold digger wanting to eliminate the Cooper gang and does not appear to recuperate Bentley's love interest.
Is it possible that she could become a Pure Evil character in a theoretical sequel to Sly Cooper: Thieves in Time? If so, what needs to happen and change for her to become such a character? If not, what is preventing her from becoming classified as Pure Evil and why can't these factors be eliminated in a continuation to the story?