Power corrupts. Any organization that gets to a certain size becomes more concerned with serving and protecting itself at the expense of everything and everyone around it. Governments, corporations, unions, all of them and more. It doesn't always have a deleterious effect, or if the organization is small enough, the effect is contained to a small scope and doesn't really affect the lives surrounding it enough to cause concern.
The problem is serious when we have corporations that get so large they affect the stability of the world. A prime example is the banking/lending crisis of this decade. Given free reign, greed wins, and they seek to absolve themselves of any wrongdoing while simultaneously taking government money that comes from the very people hurt by the actions and greed of the massive corporation.
Monsanto is no different. They seek to protect themselves and, above all else, profit. Damage to people and the environment is the cost of doing business, it's factored in. The problem with Monsanto is the global span of their bad practices. Pesticide that contaminates the ground and (miraculously!) the only seeds that will grow in that ground are the ones owned by Monsanto. What a racket that is! Nevermind the effects of GMO plants spreading beyond their fields and terrible labor practices. Monsanto will do anything to control the people they need to, the ones that will tell us it's all OK. Go ahead and eat that. You don't need a peer-reviewed study. Just buy that corn-based cereal. Our study says it's just fine.
. But yes, as mentioned, some furnishings and details would push the scene to the next level.