Q: Isn't it more interesting to show a protaganist making mistakes and recovering from them?
A: Usually, but Theresa's responsibilities are so great, any failure on her part would be a disaster for the whole world. We are in new territory here.
An interesting corollary to this question, and to the following question too, would be: "Wouldn't it be more dramatic to see Theresa start out a bad girl and end up good after doing all her good works?"
I can think of only one classic work where a bad person turned good. Scrooge in Dickens's Christmas Carol radically changes for the better. I'm not aware of anybody else using the idea. What's wrong with the idea?
It sends the wrong message. Do events create the person? I don't think so. This would seem to negate the concept of free will. If a person's character depends on his experiences then "who can be saved?" as it says in the story of the rich man who turned away saddened because he had much. Apparently whether you end up good or bad is a matter of chance.
This is not the message I wanted to give. Theresa starts out good before the story's events begin. She doesn't change. She has free will and chooses to be as she is. The question of Theresa changing or not changing is brought up in the story.
When Theresa comes out on the world scene, British Prime Minister Peter Blair assures the House of Commons Theresa is no threat to the old order:
“I understand your fears. What shall we do if a child leads us? And make no mistake, Theresa is younger than many of the children and grandchildren of the members of this House. Who are we dealing with? Will she change?
"I say, Theresa’s interests and endeavors may change, but not her heart. It is too well-considered. It is written ‘worse than death is the life of a fool’, but we saw in my talk with her Theresa is no fool. ‘Woe to thee when your king is a child’ says the Good Book, but Theresa shows lack of response to recent ill events. ‘Brutus is at war with Brutus’ said Brutus in Julius Caesar. There is no war in Theresa. She knows what to do and does not struggle with her conscience. A woman who puts her trust in a higher power will be unchanged. Theresa will remain Theresa.”