What I think is interesting is that there are a handful of fields - primarily technology and corporate leadership - where the gender imbalance is a national topic. I'm sure it's largely down to the visibility of those fields, but there are a lot of people discussing sexism in tech whose backgrounds are neither research nor technology. That seems much less true for something like radiology.
It also seems to muddy the waters a great deal. With inside-baseball discussions like medicine, I assume(?) things like roughly when the gender imbalances form are common knowledge. In tech, we seem to be constantly rehashing those matters (see: corporate diversity reports constantly stressing "our applicant pool is lower-diversity than our staff, so please stop reducing this issue to discriminatory hiring").