The media loves shock value. They love the idea of someone growing up very frum and completely rejecting it . There are also quite a few who have grown up Chassidish or Yeshivish and now are Modern Orthodox. While not as radical as those who go off the derech , their path is no less important. Though there are the Deborah Feldmans of the world, there are also those who remain shomer shabbos despite their "rebellion". No one talks about these types. So I have. I have much more respect for those who remain observant. It is oh so hip to be off the derech but it is much more hip in my opinion to stay on the derech even if one's derech is slightly different than the derech you started on.
Many of those who have shifted to the left are those who remain single. I think that there are more who have shifted to the left than those who have gone off the derech completely. Those who shift more radically hog all of the spotlight.