Why does Benjamin change so little after the revolution in chapter 3?
Benjamin represents a detached sense of sobriety about all of the changes on the farm. Benjamin just might be the only one that fully grasps the relationship between those who have power and those who lack it. In Benjamin's mind, his life still has remained the same and there is little change in the distribution of power in so far as he can see. It is for this reason that Benjamin changes so little after the revolution. Benjamin also grasps that his longevity might be due to the fact that he does not attach himself to the whims of political change:
Donkeys live a long time. None of you have ever seen a dead donkey.
Benjamin understands in a very lucid manner that in order for him to live and survive, it will probably have to happen outside of the realm of political attachments. For this, he demonstrates a great deal of skepticism towards the revolutionary ends and its presence in daily political life on the farm.