Just remember that you don't have to actually use Facebook. You merely need Facebook.
In other words, Facebook is your social network; it represents your circle of power. The more points you have on the circle, the more directions you can pivot in life.
For example, often times the people who are the least capable can still be an advantage to you; they will be loyal to you, and they will help you when you have no other options.
But, on the other hand -- you don't have to spend your time on Facebook. In other words, it's best to keep our identities as small as possible, so therefore it's a benefit to avoid making Facebook a part of our identity.