Sure .... unless they're likely to take the opportunity to get rid of the evidence against them, as likely with the child porn kid. And how likely are you to trust someone who you just found out is a cheater, or a pervert?
Kids do things impulsively, when they are under pressure.
Not if they have properly formed consciences, they don't.
Thinking back to my college days, several of my fellow students in Brooklyn were ripe for evangelizing. In their hearts they wanted do the right thing, but their moral/theological education was lacking.
Fortunately, I attended a college that drew heavily from an orthodox Jewish community and an Italian-Catholic immigrant community (Plenty of reinforcements, if you will). The rest of the students were Korean, Vietnamese and Chinese immigrants and/or children of UN diplomats and UN employees.
The Asian students seemed to desperately seek out Western Evangelism and were rarely moral threats.
The Diplomats' kids, on the other hand, were a nightmare: They were, for the most part, spoiled, amoral cheaters. Many were a lost cause; but over the course of two to five years within our "micro-melting pot", after multiple group labs and group projects, many of these kids adapted to the Western value system that is rooted in the ten commandments.
(On an aside, the Muslim kids were least likely to earn our trust--they were already too grounded in their alter-values.)
So, I hold out hope that it is not too late, for some kids in their late teens, at least in terms of cheating on tests.