The fact that you found so many external factors contributing to success are maybe an indication that measuring the degree to which success is your own doesn't

The fact that you found so many external factors contributing to success are maybe an indication that measuring the degree to which success is your own doesn't yield very interesting data. I would argue that the only purpose/use of this measure is to deny that we should expand the of people benefiting from external factors of success. But I'm quite biased on this issue, so maybe you have another use for this data ?