Orwell has Goldstein claiming that a better quality of life would threaten the Party's power, since the masses would supposedly realize that the privileged minority has no function. I don't know if Orwell himself believed that, but the Party certainly does.
A large mistake that Goldstein, or Orwell, makes is the idea that the groups behind the Revolution were motivated solely by power. From what I know of hierarchical regimes and ideologies, the desire for power and the desire for wealth go together. The Inner Party would most likely function like any other 1 percent, hoarding more wealth for themselves, and would perceive War is Peace is an unnecessarily wasteful way of providing the masses with an enemy as a distraction.
Re: A lot of resources to go to get to one arrest
A large mistake that Goldstein, or Orwell, makes is the idea that the groups behind the Revolution were motivated solely by power. From what I know of hierarchical regimes and ideologies, the desire for power and the desire for wealth go together. The Inner Party would most likely function like any other 1 percent, hoarding more wealth for themselves, and would perceive War is Peace is an unnecessarily wasteful way of providing the masses with an enemy as a distraction.