To me in a real "big picture" view, using any drug for anxiety fighting purposes itself is the backbone of addiction.
That's why I can't see benzos being "moral" treatment for anxiety. Occasional users are good and usually never fall into the cycle.
Here is the whole cycle of benzo addicts:
You have your first panic attack, or have GAD. (You go to your GP, Psychiatrist, or The E.R.)
You get a benzo, one used for anxiety.(The most potent ones.)
You get a limited supply.(You get in a habit of taking it to alleviate their stress.)
You get off of the benzo.(Since you are used to having this crutch, you fall hard.)
^^^During this time, tolerance is sure to occur with quite haste.
Now below is where at least half of benzo addicts start, or you were already addicted from a doctor:
A friend introduces you to your first benzo.(Or you are looking for some to replace your lost causes for prescriptions.)
You purchase your benzo off the street.(Prolonging your exposure, or to start the unhealthy self-treatment of new user with no prior education of the drugs.)
^^^Now at his point most will never want to part way with benzos, or a reluctant try is made, and unbearable anxiety occurs.(Now you are riding, or just hopped back on the train.) So:
You take benzos in extraordinary amounts as tolerance rises. (16mgs of Xanax a day, etc...)
Uneducated people start mixing alcohol in the mix.(Which will ensure accidents to themselves such as: excessive CNS depression, or redundant car accidents, death, seizing in the holding tanks in jails, etc...)
But as always you and your body will have a ball if used only on occasion.