Meg finally got it right close to the end of the film when she published the article about the attorney general (I think it's his title) being investigated for accepting bribes. While my gut reaction was for her to ignore the information and to be loyal to her new found love, I'm glad she chose the public and their right to know the facts.
Meg lacked the news value of confirmation in her reporting. She had no regard for the reputation of Mike Gallagher when she published the story. The police had little to no evidence that Gallagher was guilty but Meg published the story anyway.
The end was rewarding when she didn't sell out her cop friend. She finally seem to see the consequences of her actions and did her best to redeem herself.