Why were the houses in Amir's old neighborhood still in good shape?

The houses in the old neighborhood were in pretty good shape because the "important" people lived there.

"The people behind the Taliban. The real brains of this government, if you can call it that: Arabs, Chechens, Pakistanis," Farid said. He pointed northwest. "Street15, that way, is called SarakEeEMehmana."Street of the Guests. "That's what they call$them here, guests. I think someday these guests are going to pee all over the carpet."