Among Gotham's many villains, Poison Ivy could not be considered the one with the loftiest ideals.
Most of Poison Ivy's crimes were acts of defensive retaliation. For example, if someone harmed plants, she would kill that person. If someone wanted to kill all plants, she would even help Batman save Gotham.
Among the heroes, Poison Ivy could not exactly be called a hero either. She was indifferent to everything except plants. No matter who died before her eyes, she would not save them, and would simply turn and leave without a shred of guilt. The fact that she did not finish them off could already be called great benevolence.
It could be said that Poison Ivy neither wanted to destroy Gotham nor save Gotham. She was a rare slacker in the chaotic city of Gotham.
But this time, if Gotham could talk, it would have sighed, "Having you around is such a radiation hazard."
Tests confirmed that some component of the plant toxin created by Poison Ivy had undergone a change in properties, driving Gotham's citizens completely insane.
At a time like this, Poison Ivy should have stepped forward to turn things around. But the biggest problem was that she did not know which component had gone wrong, much less how to reverse it.
This was the same old question of science versus mysticism. Poison Ivy was a botanist, but her ability to control plants actually came from The Green.
The Green surely had not made her spend four years at university, five years studying for the papal exam, and three years doing practice tests before passing both written and interview exams and taking the job.
This field was nowhere near that competitive. Poison Ivy basically knew how to use the power of The Green, but did not understand why