Add education, family contacts, financial security, financial support and the non-linear reward for making it to higher positions.
Because the article includes education, let's have a smart kid with good education from a poor family: They still won't study abroad in europe; won't take a year to work on their startup; any startup won't be financed by friends, family and fools; won't be introduced to the CEO of some company by his uncle; won't be meeting people on the golf course; they probably even studied longer and are missing relevant job experience because they had to finance it themselves.
If they are smart they can make it further up, but the inhibitors add up and they won't make it all the way.
Because the article includes education, let's have a smart kid with good education from a poor family: They still won't study abroad in europe; won't take a year to work on their startup; any startup won't be financed by friends, family and fools; won't be introduced to the CEO of some company by his uncle; won't be meeting people on the golf course; they probably even studied longer and are missing relevant job experience because they had to finance it themselves.
If they are smart they can make it further up, but the inhibitors add up and they won't make it all the way.