Here's Ron Coleman on how seeing non-Orthodox people on Facebook strengthens his belief in Orthodoxy:
The other side: And that brings me back to a point related to my first one. The more I am exposed to what’s out there, whether it is among my former friends, associates and classmates who “look me up” or vice versa or among new people that I meet, the better I feel — by far — about the decision I have made about how to live my life. I cannot stress how much more valuable this is to me than the finger-pointing homilies in frum literature, periodicals and classrooms about the emptiness of gentile or non-frum Jewish lives. I see people whose lives are pathetic or sad, yes. I encounter a very distressing number of photographs of people of both sexes in their twenties, not life’s losers but professionals and prospective professionals, who are comfortable posing with alcoholic beverages hoisted in the air, as if life were just one drunken binge. This could go into the “dignity” point above, and it is a sad thing to see. But I also see people with rich, full, interesting and accomplished lives, professionally and, by all indications, personally, and nothing — not a thing — makes me want to switch places with them. The overall effect for me is one of chizuk, reinforcement.
First, the Orthodox Jew will find "chizuk" (a decidedly religous idea -- the non-religious don't need "chizuk") wherever he looks, because he can interepret what he sees however he wants. If non-Orthodox people are pathetic or undignified, it makes him glad to be Orthodox. But then again, if non-Orthodox people lead "rich, full, interesting and accomplished lives," it makes him... glad to be Orthodox.
Second is the smug judgment of others. Coleman writes about people posing with drinks in their hand as if that were self-evidently undignified and a sad sight to see. Note that this has no foundation whatsoever even in Orthodox Judaism, which encourages the use of alcoholic beverages specifically to enhance the joys of the Sabbath meal (and of holidays and weddings, etc.) and nowhere opposes responsible drinking outside of those occasions. He attributes his priggish attitudes to Orthodoxy, and it gives him more chizuk by declaring Orthodox people superior.