...how many thousands of times per day do we silently judge...

The way I see it, judgment has become a necessary part of the society. Strong people, their strong ideas, and their even stronger wills are tested every day under the crucible of judgment. It has become a proving ground for any innovation or ideal, akin to a trial by ordeal.

However, it's not that this is the way it should be, it's the way it's become.

We judge others to protect our own ideals, unwilling to change our ways for something untested and volatile. When their ideas survive our judgment and flourish, they begin to appear possible to us.

So although judgment has its negative side and has snuffed out a literally unknown number of ideas, it has at the same time protected us from many ills. For instance, racism is judging someone from a different race as inferior. A lot of humanity (erroneously) judged that idea to be true at a time, and have now flipped the coin by judging those who uphold it.

In the end, much like the theory of Mutually Assured Destruction, judgment has its good and bad sides. It's the "silent killer" of both good and bad. We have no choice but to let it live on, and pray that we're always on the right side, otherwise...