https://en.wikipedia.org/wiki/Network_effect
A bunch of people independently operating their cars to give rides with no common means to find them, schedule them, and pay them makes them almost completely useless. The network is the only thing making them useful to consumers.
It's like claiming Google is only valuable because it has websites to crawl.
No, this statement is entirely and purely false. The reason the network has value is because there are people on the network doing the work. If no one was doing the work, the network would be worthless.
Stop falling into the trap of believing that the people actually doing the labor are not contributing, or do not have value.
That is not what pathseeker said. You said (and pathseeker agreed) that the network is only valuable because there are people in it to do the labor. Pathseeker also said that having people willing and able to do the work is only valuable with a network to organize them and connect them to the people who need work done. You're both right. The people and the network are both contributing, and they both have value. Neither would be valuable on its own.