"Sacrifice" and "lose" are more negative terms. People who want children add benefit to their lives, a benefit they are willing to make tradeoffs for. One tradeoff might be lifetime earnings potential in exchange for, say, the lifelong love and companionship of a developing human being. Another might defer to the next generation or someoneone outside the self. (Anathema to individualism, I know.) You don't get that at work, and it can't be measured in dollars.
Pitting children against earning potential is a false dichotomy. Commodotizing children's lives only indicates a culture that also commodotizes adults - and women. That society has lost touch with its own humanity and, frankly, the meaning of work itself.