I'm not sure Kinsey has changed in these first twelve books. I think the reader learns more about her, but from Kinsey's perspective, only three years have passed while the rest of us have been getting older at a much faster clip. ↗
When it comes to two of the big social earthquakes in the last fifty years - which are the gay movement and the women's movement - I think there is a direct line from Kinsey to those. ↗