I see your point, but it is not a zero sum game. The goal is not to make sure she gets more success than other children, but to make sure she achieves a high degree of success.
Though we live in an age of economic acceleration, it is still to some degree a zero sum game. There are only so many good jobs and though the potential to create more of them seems infinite, in reality we know that the demand for a comfortable lifestyle still vastly outstrips supply.
The statement above is the very reason there aren't more of these good jobs. Seems a very defeatist attitude.