Mostly simply put: we are a nation that deals with crises and urgency. It has been known for decades that prostate cancer is slow growing, and as the saying goes: "you'll likely die of something else, other than your prostate cancer, even if you never do anything about your prostate cancer." To researchers, philanthropists, and the government, that is far less of a "crisis" with little or no "urgency." However, and by comparison, women have a short survival rate and a higher death rate from breast, ovarian, and uterine cancer, than we men with our prostate cancer. Another thing is: other than some urinary symptoms, men do not really have overt diagnostic symptoms of prostate cancer. There are a lot of men walking around with it and they don't know that they have prostate cancer. However, women do self-breast exams feeling for lumps and visual changes to their breasts. They of course can't do that for ovarian and uterine cancer, but those are often accompanies by abdominal pain and bleeding, so again, their symptoms are more present and overt.
So, much money is directed toward women's cancers for better diagnostic, therapeutic, surgical, and "cure" modalities, than for men and our prostate cancer. And, to throw a little real world truth and humor into it: Men are quiet, we seldom complain or speak up in defense of ourselves and our needs. We are the quiet soldiers, who by the nature of our XY chromosomes, don't speak or or assert our needs. We are the quiet soldiers who will die on the hill, while women...well...they "emote"...they quite literally scream the loudest and have better social networking of their efforts to harness research dollars.