For instance, every firm that makes a concerted effort to promote people of colour, women or sexual minorities will always arrive at a moment where they make some version of the following discovery: the people they have promoted are themselves likely to be comparatively privileged. In many, though not all, cases they are people who have already been well served by the system. They may be women who are from a well-off background, who have been privately educated and gone to the best universities. Did they require a leg-up? Possibly. But at whose expense?