Answer: The reason for this is blaintly because people are selfish. Sorry to put it that way but it's true. If you say "It's not them being selfish, it's them not being accounted for", that still is selfish in my opinion. If sed homeless person doesn't have a family to account for them, then they should make it their responsibility to try and account for as many of the homeless as possible...
He uses this secondary purpose to help support the primary purpose: to persuade readers that a conquering prince must destroy a former republic if he hopes to hold it.
