Will he become a good boy? No pun intended - you can ask yourself how things turn out and up the way they do during the run time of the movie. And I feel there are different ways to answer that - and you can decide which is best.
The movie takes us back - it shows us what we are capable of ... with the right ... well motivation. You can question the methods ... but can you question the results? On the other hand should you? Now it's not instinct anymore but ethics ... and morality ... well what have we learned today? Exactly, now sit and obey ...
