She wasn't an engineer. Perhaps they wanted engineers. Whats wrong with pointing out she happens to be cared for financially so won't have that to worry about? Its not the reason, its a fortunate circumstance.
Playing the sexism card is in rather poor taste. Did she complain when they took her on board because she suspected there was positive discrimination at play?
Doing 'the logo' and 'all that stuff' is suitably vague. Is she not fortunate to have got away with coining 60k for a lowly role in the first place?