I don't know who wrote the following mini-essay; it makes a good case for the optionality inherent in savings, though. And even better, it points out why that optionality is a good thing from an employer's perspective.
Your savings, believe it or not, affect the way you stand, the way you walk, the tone of your voice -- in short, your physical well-being and self-confidence. A man without savings is always running. He must. He must take the first job offered, or nearly so. He sits nervously on life's chairs because any small emergency throws him into the hands of others.
Without savings, a man must be too grateful. Gratitude is a fine thing in its place. But a constant state of gratitude is a horrible place in which to live. A man with savings can walk tall. He may appraise opportunities in a relaxed way, have time for judicious estimates and not be rushed by economic necessity.
A man with savings can afford to resign from his job if his principles so dictate -- and for this reason he will never need to do so. A man who can afford to quit is much more useful to his company and therefore more readily promoted. He can afford to give his company the benefit of his most candid judgments.
A man with savings can afford the wonderful privilege of being generous in family or neighborhood emergencies. He can take the level stare of any man ... friend, stranger or enemy. That ability shapes his personality and character.