It is likely to have more to do with gender stereotyping, and attitudes towards the work itself. Women and men alike perpetuate gender discrimination: https://escholarship.org/content/qt8s94154n/qt8s94154n.pdf

Fields that hold fixed-mindset beliefs, where success in the field is attributed to innate talent, "being smart" or other unchanging characteristics, have significantly more discrimination against women and traditionally-marginalized racial groups than do fields that believe success relies on hard work and practice: https://www.science.org/doi/abs/10.1126/science.1261375