Blocking the view

Old man Fortune was a man of excess, a man of progress, and a man of family, well to one person at least...Kind of...This visionary man dreamed big and altered his plans as the times advanced. He was on top of it, and he chose to leave his work under the supposedly trustful eyes of Mary Fortune. Even though she oscillates loyalty back and forth between her step-father and her grandfather. He saw himself so vividly in her, and she was that much more aware of what happened to her and how she responded and was supposed to respond. The bulldozer has captured her attention since the beginning of the story. The machine and the man became quite a spectacle, a focus of her every attention. It gave her an escape from Pitts' beatings, and her grandfather's constant attention. I think that the most memorable moment, besides the continuous and maturing bulldozer symbol, was the moment that occurred on pg. 532 of the course packet. This moment is especially noteworthy because of the title, it is clearly central to the story.  Mary Fortune starts off with her concern that "[they] wo[uld]n't be able to see the woods across the road". Her grandfather responds with disdain and anger about how the view means nothing, that it doesn't matter. That it is just another place. This is a defining moment in Mary's character, this was her breaking point. This was the beginning of the end.

Question for the class?

Do y'all think that the bulldozer symbolizes one aspect of the story in particular? If so what does it symbolize or what different things does the dozer symbolize?