Yes, a salary raise in industry A will lead to a salary raise in industry B. Industry B has no option to stop hiring people altogether, so they have to hire at

Yes, a salary raise in industry A will lead to a salary raise in industry B. Industry B has no option to stop hiring people altogether, so they have to hire at the higher wage level. But a gender gap in industry A will not lead to an gender gap in industry B. Industry B will just hire the cheaper gender until industry B has no gender gap.