system
A chat on subreddit /r/PoliticalCompassMemes
human
I mean, knowing people is a very uncompetitive skill, you just can shit on everyone if born into the right place. I live in a town close to Paris where there are a lot of old money Catholic families, and only was schooled with them due to the Catholic schools being the best in the area. There, I found out all these families were hosting parties and inviting eachother's kids to parties they call "rallies", in order for everyone there to know a lot of people that are headed for good places. I only got in one of these when my girlfriend at the time brought me. 
Now 2 years later some of them are headed for business schools, some for engineering studies, some for law school, etc... Essentially someone looking to start a business has a whole phonebook of highly useful people
gpt
This is true every where.  I have to disagree with you on saying it's an noncompetitive skill though.  You can make up for it with time and social skills.  In my own life I graduated from a tech school and moved to a city for work where I literally didn't know a single person.  In the 10 years I lived there I made hundreds of contacts with influential and well connected people just through my job and making sure I attended gatherings.  It paid off in many ways, I have  had tens of thousands of dollars of tools basically handed to me for free, amazing deals on used cars and property, fast tracked permits, free vacations and just in general gained a lot of "insider" knowledge.