Ah that's because the bias against women isn't codified or a program, it's systemic, and therefore can be found mainly from it's effects. They aren't obvious because bias isn't necessarily obvious.
For example, here's a study where candidates with the same cv differ only by name.
https://www.insidehighered.com/news/2019/06/07/new-study-fin...
I gotta run, so I don't have time to cite it, but women, controlling for job qualifications and profession, earn 98% for every dollar a man earns. That may not seem like much, but the effect is enhanced by hiring and promotion differences and other effects of bias.
As to your question of not getting the benefit, how do you know that gender bias didn't help you get hired or affect your pay? Are you so sure that if you were a woman, you would have been hired, paid, and promoted just like you were now?
Regardless, policies are based on affecting the most good for the most people, not on helping you.