Now if there's a way to make money, suddenly it becomes an attractive subject for some, but the liberation of women with reusable products (menstrual cup, washable pads and period pants) will always come second to potential wealth increase with single-use solutions, especially for someone who does now experience the "problem" in the first place.
Worse than all that, the people in charge of pushing single-use products genuinely believe they are helping out women, when in reality we see cases of toxic shock syndrome due to chemicals in tampons, and the ecological impact of such single-use products.
My wife has been using reusable solutions for a few years now, the cup and period pants being the most liberating according to her.