Others might argue that it puts us in touch with those who we might not otherwise encounter. But that seems to me to be a very tenuous connective thread.
Phone calls would be nice.
God knows I've come to realize that social media doesn't work as far as promoting your individual art or craft. Those who are truly interested will stay in contact and will remain interested in your work, because they will know they've influenced it and are part of it. Others...well, if their primary intent is only to make you feel all warm and fuzzy inside, then I say it's a mild opiate that works to lure you into a desire for the stronger stuff.
Sharing your work --no matter how diligently you've worked on it or crafted it-- is the same as giving it away for free. And as we all know, anything given to us for free has little or no intrinsic value (which explains the few 'likes' or comments I receive --including from my own family).
Those who appreciate your creations, your art, will find it. Social media or no.
I think I've come to realize that FB, LinkedIn, and others are, at best, simply not worth it. In a larger degree they give us all a false sense of belonging. Those you want in your life --in whatever degree-- will find that place in your life. If your only connection is through social media, then perhaps a reevaluation is necessary of each of us and our relationships.
Of course, these are merely random musings from a middle-aged curmudgeon.
And however you might feel about it, please know I wish you all well.