How is the concept honesty connected to the book animal farm?

I will have to look up a corresponding quote, but honesty is very rarely connected within the text. The text is filled with propoganda, lies, deceit, and manipulation..... which is the way the pigs gain and keep control on the farm.

“Somehow it seemed as though the farm had grown richer without making the animals themselves any richer—except, of course, for the pigs and the dogs.”