Why is she the highest-earning? A quick look finds that she’s not one of the highest-rated. I quickly find that Crime Junkie, Cold Blooded, Amy Poehler, Mel Robbins, Megan Kelly, My Favorite Murder, etc. are all more popular.
Her last show was all about how to avoid catching crabs on the first date.
The difference, I think, is that “Call Her Daddy” airs on SiriusXM. So she’s under contract with the same outfit that made Howard Stern a billionaire.