I don't think it is about 'saving' the Middle East; I don't think it's about imposing our will on other countries.
To me, it's about dealing with tyrants.
It can be argued that it is none of our business but that argument seems slight when you realize that radical elements could easily get a hold of some nasty weapons if Syrian society and government collapses. I'm pretty sure I know who those elements will pick as targets.
There are also a bunch of international treaties that Syria has signed on to that they clearly are ignoring.
And finally, can you think of a despot/tyrant/dictator who has actually been 'talked out' (ie, diplomatically, politically) of power? Libya, Romania, Laos, Chile, WWII Germany... none of those guys were willing to give up their positions without a fight.
OK, sure, it's not really 'good' to attack other countries. But there exist problems with no 'good' solutions; only less evil ones.