It's fairly well-known that there is more medical knowledge about men, and women are affected in different ways by diseases, about which more knowledge is needed.
Sure we can, but I don't think it's very productive to start arguing that society doesn't care about men's issues. I don't immediately see what society has to do with the lower life expectancy:
See for example this article: https://www.ft.com/content/7864ae80-9597-11e8-95f8-8640db906...