India, Oct. 18 -- Business leaders who boast about working 14-hour days while surviving on just 4 hours of sleep are setting a "terrible example" for their employees, according to ServiceNow president and chief financial officer Gina Mastantuono.

Speaking at the Fortune Most Powerful Women Summit in Santa Barbara, California, Mastantuono said some senior executives continue to take pride in working long hours and sleeping less, believing it demonstrates their dedication.

"There's always been this-if you have to work 14-hour days and you get four hours sleep, and that shows that you're working the hardest and you deserve the most. And in fact, that is such a terrible example for the people around us," she said.

Drawing a comparison with...