While even most teacher today are ex-monks (someone who rejected the refuge and went back to the lower life), isn't it clear that such a person has own problems with his faith? How could one nevertheless rely on such people often "patiseit" the Gems?
My person wonders if there is any reliable story of an ex-monk having become a , by the Buddha, by the Sanga and good people, praised Dhamma teacher.
Can any reference in the history, beside of the modern degenerated, be found that one leaves the Buddhas religion (bond) by dis-jointing/robing, the Savaka Sangha, takes on "a wordily mission" and made even some merits while doing so?
(Not that there are also those going back to lower life but still wearing the clothers of the Arahats. And there are those never weared the robe but lived the holly life a while who went back to lower life for "missions of gains in the world".)
[This question is not for trade, exchange, stackes or what ever bonds to the world given, but for cleansing and liberation, receiving and serving it]