Most companies find it hard to retain talent. In cut throat competition and narrow profit margin it is really tough to match up salaries/ perks and most importantly sustain that trend.
So flexible working-time is what companies offer as one of the employee benefits. It is to the realization of such corporates that productivity is more when employee is happy. Employee is naturally happy if he/she is able to strike a right cord between Work & Life. Life doesn't always mean in vicinity of family, it could also be a time to read your favourite novel or discuss it with a friend, or may be watch a movie or play a game. Work is-to Live but Life is-not to Work (only).
A shift in corporate culture is a key driver for managing Work-Life balance.