When you give a corporation the rights and privledges of a "person" you are creating an entity that has no hart or soul. One reason Capitolism and Freedom works is because people have inate goodness and will generally do the right thing. When you create a corporation whose goal is only the bottom line, you are taking that inate goodness out of the profit machine. The result in capitolism is that corporations that put the intent to benefit society over profit go out of business to the competitor who puts profit over the intent to benefit society. The end result is a corporation that is willing to harm people for profit.