What I think Flashpoint does better than other shows is to capture the emotion and human impact on all involved in the various roles relating to the drama. Jules took a chance by reaching out to Sarah and even if she did get 'played,' she also made a powerful impact in Sarah's life and was able to save her life in the end.
Just as Officer Farrell's kindness turned Jules' life around, so Jules' decision may end up helping Sarah turn her life around. Just like Sarah has Maddie to run to, she now has Jules to run guidance. It's a powerful reminder of how much of an impact a single act of kindness can have on a person.