Totally different groups, with totally different needs.

The men on the national team are mostly millionaires many times over, who are mostly concerned about safety, facilities, physios, etc. and consideration with their clubs. The token compensation for them for playing internationally, frankly, doesn't matter.

The women on the national team typically make $0-$50,000 per year from their club teams, which consistently are on the brink of financial collapse and have very poor facilities and limited benefits; thus, these players need to have substantial compensation from their national team duties in order to sustain life as a high-level professional athlete.

This is the reason, even more than the obvious gigantic difference in revenue world-wide, that the status quo has been the men get more per-match compensation than the women but the women get annual contracts that the men don't.