I fully support the idea that luck has a lot to do with the outcomes in your life but my conclusions from this idea are very different then the implications of the article.
If you need luck to succeed then you must try as many times as you can...keep spining the wheel of fortune until it hits your name. Sure, you can spend your entire life trying and not get anywhere, but life, nature, and existence is not fair nor does it need to be. Other then basic rights and freedom's, nobody owes you anything in this life.
To me the conclusion of the author's view point is that the lucky ones owe something to the less fortunate and that they need to feel some sort of guilt for their success because it was just because of luck and not because of hard work.
Look, I went to a pretty left leaning university. I used to think like the author before. Luckily, I changed my world view over the last 5 years. I am so "lucky" that I did. I wish I didnt spend my early 20's thinking the way I used to.