Many of them are affected through their daughters and other female relatives. I've been well received at several Optimist Club meetings. Take your book with you everywhere and use it as an introductory tool. If these are mentioned in promotions and publicity about your book, the reader has instant access to your book. Don't force them to go to the bookstore.
Many people are procrastinators.
Do whatever you can to close the sale at the peak of demand. There are thousands of niche publications and organizations. Find the ones closest to the subject of your fiction. If you market to colleges, look for the professors interested in your subject. During an Internet search, I found a set of guidelines to help physicians identify victims of sexual assault.