How do the pigs justify having moved into the farmhouse?

In Animal Farm, George Orwell’s novel involves talking animals who plan on taking over the farm from the owner. However, equality plays a role in this book. Not everyone agrees with the equality part. During chapters 5-7, the pigs move into the farmhouse which doesn’t seem very fair since equality is important to the theme of the novel. However, one of the animals explains why this should take place.

The pigs are by far very smart and they should have a quiet place to work. The farmhouse will be a great place to work in silence. However, not everything turns out well. Much fighting over animals being treated unequally surfaces among the animals. By the end of the book, the animals and the humans have many similarities.