Remembering that you and I have disagreed so often in the past, I thought you would be gratified to see me acting in accordance with your principles.
And then Rearden thought suddenly that he could break through Philip’s chronic wretchedness for once, give him a shock of pleasure, the unexpected gratification of a hopeless desire.
I believe that you hold a philosophy which disapproves of sacrifice-but in this case, you are most certainly a woman, so I’m sure that you will feel gratification at the magnitude of the sacrifice a man has made for the privilege of using your body.
He had walked out into the summer twilight of the streets, feeling as if he were both pursuing and pursued: pursuing a pleasure which nothing could give him, in celebration of a feeling which he dared not name-pursued by the dread of discovering what motive had moved him through the planning of tonight’s achievement and what aspect of it now gave him this feverish sense of gratification.
But he raised his head to glance up at her face, and it seemed to her that the look she saw in his eyes was part-gratification, part-contempt-almost as if, by some unknown kind of sanction, she had absolved him and damned herself.
There are no more uses of "gratification" in the book.