Sadhu, Sadhu!
Even if there are no Noble Ones in a Sangha, it nevertheless gives the possibility to perceive right.
Why is that? Because it increases wrong view and no body would perceive an Arahat or Noble One as well.
There is the case where a certain person is covetous. He covets the belongings of others, thinking, 'O, that what belongs to others would be mine!' ...He has wrong view, is warped in the way he sees things: 'There is nothing given, nothing offered, nothing sacrificed. There is no fruit or result of good or bad actions. There is no this world, no next world, no mother, no father, no spontaneously reborn beings; no brahmans or contemplatives who, faring rightly & practicing rightly, proclaim this world & the next after having directly known & realized it for themselves.' This is how one is made impure in three ways by mental action.
Dhamma is then no more something given, but taken. The Nissaya toward the Tripple Gems is brocken and there will be no more than low merits, no purification on one side and no more on both sides. Just perceiveable worldling maybe, if even, conducting merely fruitless Dhamma.
This is the cause, this is the reason, why since old times Khmer people used to give what ever Dhammic book received, back to the Sangha (where they always can ask for it again).