What advantages/privaleges have the pigs given themselves that the other animals don't have? Hpw does this seperate the pigs from the other animals?

Thirty-one young pigs now live on the farm, all of them parented by Napoleon. He makes plans to build them a schoolhouse and discourages them from interacting with other types of animals. He also instates two rules of pig superiority: other animals must stand aside on the path to let pigs pass, and pigs are allowed to wear green ribbons on their tails on Sundays. Napoleon also awards himself the privilege of eating sugar. Still, times are hard on the farm, and the animals struggle to make ends meet. The chickens are forced to lay six hundred eggs per week to sell in town and can barely keep any for hatching. Rations are reduced again, and the animals are not allowed lanterns in their stalls anymore in order to save oil. Meanwhile, the pigs seem to be flourishing.