I think something a lot of people look over is how pervasive the feeling of loneliness can consume someone. Its this desire to connect with someone, anyone, on the chance they might have a relatable life to your own or whom you can collaborate to create share experiences.
You can socially know a lot of people and still feel lonely if you don't connect with anyone at a visceral level. Using myself as an example, I have a lot of friends and an even wider social network. I'm pretty popular at work and I think admired in some ways for having a successful career. In college, I belonged to many student groups and was invited to quite a few parties a week. I went to those parties and knew almost everyone at them and they recognized and would want to party with me. I even met a lot of girls and slept with them, sometimes several at the same time but I never got over that feeling of being alone.
Even in high school, I had many friends and acquaintances. I was well known among my peers for being the guy with full schedule of AP classes while also captain of our school soccer team. I made Top 25 gpa-wise and I also banged a lot of chicks during this time in my life. Our team made it to states, and I got the final goal in at the last minute of the final match winning us the championship. My whole hometown was cheering for me but it didn't fill the hole I had in my heart.
Thats why despite any achievements or popularity, I think to better relate to one another, one of the most important things is to be humble.