Double Subverted: ...except that she has second thoughts and uses her purity and grace to convince Satan himself to hold off the apocalypse indefinitely.
Parodied: Goody Tushoes is so nice that she can make it stop raining by her pleas.
Deconstructed: Goody is a nice girl, but she's only like that because of her parents' divorce, misattributed guilt for her sister's suicide, and her abuse at the hands of a Sadist Teacher named Mr. Lucifer. The pressure becomes so much that she's Driven to Suicide.
Another alternative: Her naïveté makes it extremely easy for the villains to manipulate her, and she ends up doing something terrible as a result.
Reconstructed: But she doesn't go through with it because she made a vow to not let others suffer the downside of life. Hence, the current Purity Sue we have today.
...but she still appears perfect, so no one's any the wiser.
Zig Zagged: Goody is one of the Four Horsemen of the Apocalypse, and is planning on unleashing hell. However, she has second thoughts, and tries to use her purity and grace to convince Satan to hold off the apocalypse indefinitely. It backfires, and the heroes have to save the day. (With her help, of course.)
Averted: Goody is a realistic character with flaws like everyone else and is not incorruptibly pure.
Enforced: Anyone who's less than fond of Goody is envious, and ends up being either demonized or won over by her.
Exploited: Goody's "friend" Alice uses Goody's reputation to her benefit.
Lampshaded:
"You know, Goody, you're beginning to scare me. Seriously, do you do anything wrong, even once?"
"You may be a bad as a character, but you're great as a person."
Invoked: Goody is originally an ordinary girl, but decides that she likes the image, and takes steps to present it to others as herself.
Defied: The heroes are immediately suspicious of Goody's immediate and overwhelming popularity, and suspect foul play.
Alternatively, Goody wants to demonstrate to the other characters that humans have flaws, so she tries to make a mistake every once in a while.
Discussed: "Does anyone find it just a bit weird that that girl Goody has been here for about 2 hours and Everybody loves her?"
Conversed: "Oh, that Goody Tushoes! She's such a good girl."