That's a whole post on it's own to be certain. And one that many witnesses and users alike have repeatedly made, but perhaps it bears more of the same :)

Witnesses are critical to the whole thing even existing, and as users mature they tend to figure that bit out, then dig in a little deeper, usually their 50ish rep levels they begin to understand enough to make solid and aware witness decisions and to be honest, before that, their votes are pretty unpowerful anyway, usually, though they still add up and lend a voice of support to the witnesses they prefer.

It's a simple and complex topic all at the same time.