The web sie internationalwomensday.com is not, even though it says it is, the official site by or about IWD.
It is run by a PR company (2 women unfortunately) who realised that if they pitched to big business they could get enough money each March to survive the year.
Their "innovation" is the direct cause of how many IWD events are now business related, ie big companies to a little token event or something.
What is astonishing, but then we know this happens elsewhere, is how many people who should know better now just accept it is "the" IWD site.
So everytime someone uses their logo or their theme for the year (as opposed to the actual UN one) this just shows that with the right amount of money you can coopt anything - and mostly people dont care because it is easier to do that.