I believe the answer is: From the excerpt above, proctor want to say to Puutnam that even people with power could not do everything without consequences.
Putnam's thinks they can get what they want and get a way with anything due to the wealth that they have and the influence that they have within the chruch. They fail to realize that people could instantly turn and become a threat to them anytime.
It means that John Proctor is saying that Mr.Putnam is wrong by the accusations of the children being taken as dead by evil thing. So society is not at Mr.Putnam disposal, and he won't or cannot do whatever he wants with it.<span />