Shmiras Einayim

And for the sin which we have committed before You by a glance of the eye. - from the Yom Kippur prayers

The concept of shmiras einayim, guarding one's eyes, is not something that is widely valued in Western society. It is certainly not valued in places where shmiras halashon, guarding one's tongue, is routinely ignored. A cursory internet search of the phrase "shmiras einayim" comes up with very few results.

Why is this?

Have we perfected our neshomas to the point where we don't need to speak about this concept any longer?

Have we decided that we simply are not affected by the sights that we permit our eyes to see?