Health:
It was, in fact, her tznius. Medrash says that is what he noticed in her, that SOLE FACT. How she modestly squatted to pick the low-lying ones, instead of bending down. (refer to the crises in cars for more on this)
As far as the other acts she did, they were directly guided by Torah counsel – no personal gratifications of any sort. Chalila to attribute that to lack of modesty!