Facebook has a lot of positives to go along with its negatives. For me, it's the only way I stay in touch with a lot of my friends from high school. And I know that it's only because of Facebook, because Facebook didn't exist for the first 10 years after I graduated, and most of my friends didn't get on it until about 15 years after graduation. It was great finally reconnecting them with them all.
They are people whose company I enjoyed, but we just didn't have the time to have individual conversations every week with the 50 people we knew from school. Having a way for them to broadcast updates has been super helpful.
Also, the Portal is great. I got a pair when they came out, and it's easy enough that my four year old will call her grandparents regularly without my help. It's the only platform that we've found that is easy enough for both the four year old and my parents.
I use messenger and WhatsApp to keep in touch with friends in other countries. They are easy to find because we're friends on Facebook.
So yeah, Facebook still has a lot of positives for society. I don't judge someone who works there just for working there. I hope that they are working to enhance the positives and minimize the negatives. From what I've seen with the folks I've talked to, that is always the case.