[dotancohen]

You might as well phrase that as "If your close neighbours have gotten vaccines then you benefit little from getting your own."

We live in a society. Everybody chips in. And each surge protector adds to the robustness of the grid.

[JanisErdmanis]

Yes, that puts it down perfectly. That’s why some don’t ever see the benefit of installing their surge protector whereas others install one way too small for their situation and find them useless anyway.