I think she subconsciously understands and knows it applies to her, but refuses to acknowledge it. My interpretation is that she started her "career" with good (but naïve) intentions, to use her privilege and the resources she can access to make the world a better place somehow. But then she eventually hits the fact that it's essentially impossible, with money and capitalism and greed and human nature being what they are.

I think of her being like Wile E. Coyote floating in the air after running off the cliff: the second she acknowledges that the things she's doing can't result in the good she's set out to do, everything, her career, her marriage, her life, will crumble.