Several gals I know read this book to understand how (many) men function. They want to be man-savvy and particularly predator-savvy.
It seems like a how-to book for guys who have been disappointed in their romantic or simply sexual pursuits. Some guys are luckier than others. Some guys are chick magnets, and they are not all tall, dark (or orange), and handsome.
It's not just rich and powerful guys who decide to give their instincts free rein. It's not just guys, either.
Interesting to me that nobody needs to write books for women about how to get appealing males into bed. It just comes naturally to them.