It's always nice to at least have the option of wearing matching socks. There's a time for a ski sock, a running sock, a work sock, and a no-show; but in these times, one is less than or equal to zero. Having just one isn't helpful. People need pairs. Problem is, after the first time socks are worn, there are no guarantees they will travel in pairs.
All of the outstanding socks available today makes losing one even more frustrating. And costly. And while we have no idea where they go, our guess is that lost socks are not making a positive impact on the environment.
So, while an outfit doesn't always need to be all "matchie-matchie", socks kinda do.