A higher Gmat would have helped for sure, and I realize how much more important it is for someone with your background.
On the other hand a score of 720 is usually enough for the admission office to say "ok, good gmat, we have it: let's move on to other parts of the application.
Even if you retake and reach a 760+, would that really be the "make it or break it"?
I wish you all of the best luck with your applications; Cheers.
"The Burnout" - My Debrief
Kudos if I helped you