Forget the Mercedes. Money won't bring you happiness and neither will a Mercedes, but in case of illness or living discomfort (not from overwork but from other stuff out of your control, like needing physiotherapy, braces, prosthetics, dental implants, or living in a rough, loud, polluted neighborhood etc) you'll have a much easier time taking care of yourself and escaping discomfort if you have money vs not having money.

Having money helps a lot in making yourself comfortable when life makes you uncomfortable.