The real reason for that statement is because It symbolize the moral principle that held by the organization.That symbolization alone determines the way the organization was run. I hope this is what you are looking for
In Dulce et Decorum Est, hags is used to describe young soldiers. The simile 'coughing like hags' was used because the young soldiers went into battle strong and full of life. After battle, they returned looking aged and beat down - hence 'hags' or resembling beggars.
