The ability to be persuaded: positive or negative?

In chapter four, we are introduced to this idea of persuasion when Anne is persuaded by Lady Russel not to marry Captain Wentworth. Though Lady Russel may have good intentions to preserve the ideas of a beneficial match, Anne's father's disapproval seems unfounded, if only based on his dislike of the social mobility of the Navy, as previously mentioned. Since this was years ago, a younger and more malleable Anne is at the mercy of the advice given by those who are older and wiser in her eyes. Still, in Mansfield Park, it seemed Austen was in favor of a woman who could think for herself and listen to her own innate feelings in order to act. Now that Anne is older and wiser herself, she'll think for herself, right? I'm hoping so. She kept her family happy and together by listening to their advice, but if it was at the expense of her own ultimate happiness, then what was the point? Is selfishness to be looked down upon, like her father? Therefore Anne's marriage refusal would be an act of selflessness. Anne may have naively thought that her father had her best intentions in mind, which really does not seem like the case given his opinions on the Naval profession and what it can mean in terms of social stature. Now that it is seven years later and Anne shows signs of regretting her decision to break the engagment, Austen still leaves the reader up in the air over whether the ability to be persuaded is a positive or negative thing.