It is simply human nature. These pigs will be the ones attempting to gain all of the power and control the rest of the population. The image of the humans and the pigs being indistinguishable points to the frailty of the human condition and it declares that this condition cannot be "fixed" and it will lead to humanity's downfall in one way or another. Power and greed only make people more power hungry and greedy. There can be no equals in this kind of society because people, regardless of we like it or not, are simply not equal. There will always be those with more and there will always be those with less. Additionally, there will always be those that want to control everything and those who allow that control to occur. Animal Farm pokes fun at humanity...

There are messages and warnings to be mindful of in this novel because there can never be a perfect utopian society. This is because groups of people need leaders but most leaders lose their good intentions when they gain power and serve only themselves. Animalism or fascism are illusions used as a means to obtain power and control. The old adage that the road to hell is paved with good intensions is true but it is also paved with evil, greedy ones as well. We also hear that it takes all kinds to run the world but also takes all kinds to ruin it; Orwell saw the depravity of man and deemed it good enough for the animals.
Work Cited

Orwell, George. Animal Farm. New York: Harcourt Brace. 1977.