Esme and Sloan ending look

During the movie Sloane never felt Esme was cut out for that line of work. Even when Slone through Esme under the bus. Sloane said that what you can expect. At the end after showing Esme just how far people are willing to go. Showing they are willing to die to win. I took that look as Esme finally getting it. Just like Jane comment of academia is more to her likening. I am still not sure if Sloane's goal was to take down the firm or to win the bill. I do see they all under estimated Sloane. Even after Jane warned them. The look on Peterson Wyatt face seemed that of someone realizing they got used so Sloane could achieve her agenda to take down Cole and Krevtiz and Waterson. I saw the reason as, the firm under estimating her ability. Not giving her credit because she was a women.