The famous examples of women who did things that society feels are important enough to write their feats into the historical record would - for women - probably more likely be those who did something with the help of a support network that encouraged them. Maybe a better example is women who just didn't fit their sex stereotype at the time, like Mary Shelley. I know women who don't exhibit that hivemind lunacy you speak of, but it's because they act more like men and don't have many female friends in the first place.

Still even if there are outliers that don't fit the mold, it doesn't mean we shouldn't base social norms on what's best for the majority. Western culture has a problem of allowing small minorities to have undue voice and influence.