To understand the depth of this work, one must look beyond the courtroom to the sociological reality. Discrimination on the basis of sex is rarely a singular event; it is an accumulation of micro-aggressions and structural barriers.
Pay women less for the exact same roles based on the assumption that men were the primary breadwinners. The Supreme Court and the Definition of Work
The air changes. Neither acts.
Legally, discrimination on the basis of sex occurs when an individual is treated unfavorably in employment because of that person's sex. This covers a wide range of behaviors and policies.