Why is it dependent on the revenue they bring in? A business owner/CEO will and should pay only what they need to in order to hire the talent they need. If there is an oversupply of talented female soccer players and a shortage of male players then the women will be payed less. That is likely to even out over time.
Your supply demand analogy is backwards. You think the countries with the most soccer talent pay less to their national team players? It's the opposite. If you want your countries best players to play, you have to compensate them commensurate with their value in the sport.
Besides, it's much harder to make the supply and demand, market economy argument with national teams. There are other factors like patriotism/nationalism that may prevent the normal labor/management dynamic from playing out as it would in the wider world of sports.