[6stringmerc]

In short, my answer to your "why" actually rhymes: ROI, that's why.

A gifted, talented, socially well adjusted person has an extensive potential to do amazing things. Thus, it's my perspective that starting with those who have un-actualized talent - those with the capacity, aptitude and attitude to rise high in achievement - is more compelling than spending extensive time and money on maximizing the use of a limited capacity. That's kind of the whole thought behind trying to identify smart and capable people - it's their potential.