Why should, asks what you think are aspects or POTENTIAL aspects of the career that would cause a young professional to desire it. If this was a conversation as to how to increase the number of people in the field the answer could include aspects that do not currently exist. While the aspect could exist in potential, it would have to be real.

Understanding the Context

Why the voiced /z/ won out over the voiceless /s/ is not clear to me. Modern French mostly uses /gz/, as in xénophobie, but I don't know the history of how the modern French pronunciation of word-initial x became established.