There is certainly sexism built into the rating system, as woman titles require 200 less Elo points to achieve. https://www.chess.com/article/view/how-to-become-a-chess-gra...
Similarly, a Brigadier General is not the same rank as a General, despite some commonality in word choice between the two ranks.
"These titles are sometimes criticized and some female players elect not to take them, preferring to compete for open titles. For example, Grandmaster Judit Polgár, in keeping with her policy of playing only open competitions, never took a women's title."