Just because "he employs women and promotes them" it does not follow he does not discriminate. There are lots of other aspects you would need to look at. Do they feel less respected than their male colleagues? What are the age demographics? Are they in equivalent roles? Are they promoted to an equivalent extent to men, or is the promotion distribution distinctive in some way?   I am not saying I know the answers to these questions, but I raise them to explain why discrimination could still be present.