I think it's clear from their initial rant of "Why should I help old geezers and fat asses?" that the real reason they're not only refusing to do simple things, but proud of it, is because they're put off by the fact that they were asked to do something minor to help people they very obviously looks down upon.
It's all selfishness and hate, no need to look into it any further.
Seplito
Nash, Smelling Like the Vault since 1996
Step FOUR! Get Paid!