TWO PART READING RESPONSE: The Life You Save May Be Your Own (Flannery O’Connor)

Plot
One evening, near sunset, Tom T. Shiftlet arrives at the desolate farmhouse of Mrs. Lucynell Crater and her nearly thirty-two-year-old, deaf-mute daughter, also named Lucynell. During their conversation (Mrs.Crater and Mr. Shiflet) Shiflet spots an old automobile. It became immediately his goal and accepts the purpose of Mrs. Lucynell to stay in her farm. But her purpose was intentionally made because she sees the one-armed man as someone who will make repairs at her farm and as a potential husband for her deaf daughter. Mrs. Lucynell after being convinced that the man is trustful, proposes him an agreement: she will give him the car, a coat of paint, some money for the honeymoon if he accepts to marry her girl. Victorious now, he accepts her agreement and after mends the car the girl and Shiflet get married. Then they leave for their honeymoon but Shiflet abandons his sleeping wife in a restaurant with the excuse she is a hitchhiker. Perhaps somewhat depressed by his actions, and somehow influenced by the road signs which announce, "Drive carefully. The life you save may be your own," Shifilet, stops and picks up a young boy who is hitchhiking. Evidently convinced that the boy has run away from home, Shiftlet begins to praise the virtues of his "old mother" whom he supposedly left. As Shiftlet becomes more eloquent, the boy, in apparent disgust, condemns all mothers in general and leaps from the slowly moving car. Briefly shocked, Shiftlet offers up a short prayer and then races an approaching shower into Mobile. 
My opinion
This story is very disgusting for me. Both Mrs. Lucynel and Mr. Shiflet are trying to benefit from each other. They are so scrupulous that they don't think at all about the life of the deaf girl. Her mom, desperate for a son-in-low, purposes such a stupid agreement to the man. She equals her girl,who initially says she wouldn't give up for anything in this world, with that old rusty automobile and a little amount of money. That just isn't fair!! Furthermore, blinded from her "goal" she doesn't sees the goal of Shiflet; his only intention was the car. This man who initially compares women with trash, accepts to marry this girl, who he doesn't know at all. Her mother, thinking that she would be perfect as a wife because she can't speak and hear, can't make her voice be heard, and  just obeys offers her to someone she doesn't know well. And where is her right to do so?? Well she did this and the man accepted only to fulfill his ambition, but what about the way the man treats the girl?! It is unacceptable. He abandons her, treats her like a tool or like an old thing that has to be thrown away. For him, she is just the tool he needs to achieve his goal. And this is just wrong; they both treat the girl very bad. They profit from her inabilities and decide whatever they want to do with her life. Where is the compassion of the mother and "until the death separates us" of the husband here? 
This story has something true in it, because even nowadays many girls are treated in this way. WOMEN ARE NOT FOR SALE. They are human beings with the right to live and to decide on their own for their lives!!!