Hmm... non-ticketed fee? OK, but $5 is way too much. Assuming five minutes of labor and $12 an hour, that's only $1. In reality, it costs much less than that. But, I would be happy to pay $1 to go through security to meet my mother at the gate. Heck, I'd pay $1 just to plane-spot!
I don't believe delaying the person behind you at security or the phone queue to get a refund is relevant. I could call every airline to get a fare quote instead of going to Expedia.com -- is that such a bad thing?
Even worse, I change planes instead of flying non-stop to get another segment and more miles. That means people behind me boarding on my connecting flight who are taking the first of a two flight trip are delayed, quite possibly causing them to mis-connect. I'm also using up a seat on not one, but two flights that may result in them being overbooked, causing someone who was trying to book a flight at the last minute to miss a funeral or a dying relative's last words.
See where this is going? It's one thing to be considerate, such as holding a door open or helping a blind person cross the street. But to abstain from going through the security checkpoint? That's insignificant IMHO.