Without a doubt, there are more consequences than are listed here, and we certainly should understand why certain decisions were made to do nothing, to reduce security, and, for weeks, to blame the whole enchillada on a radical youtube video...
First of all, we lost four very good men during the attack. Men that are irreplacable.
Second, we know now that the President, the VP and the SecDef knew what was happening within a relatively immediate timeframe. The way it should have worked was that the SecDef should have given the President options. Of course, one option is to do nothing. Apparently, even after knowing what was happening and having drone footage ~2 hours into the fight, the President decided on nothing. This is problematic if you work for State in the ME. You know now that the President won't help you in times of dire need. You will either stop taking any risks or you will decide to use more force than might be necessary. Either way, it's not good for our State people over there.
The President made the decision to not use F18s (even in a flyover to shake the resolve of the terrorists). The President made the decision to go to Vegas to a campaign dinner.
So what is worse than our State people now knowing that the President will do nothing if they are attacked?
Al Qaeda knows that now, too.