Success in life does not entails having much money alone, according to the English dictionary which defines success one of which is "The  achievement of one's aim or goal" Success could however be in the context of financial profitability but in the actual sense of achievement of aim or goal, success is therefore referred to mean acquiring some certain desired objectives such as, success in exams, success in a competition, success from being innovative, happiness and cordiality within friends and family even without having so much money can also be referred to as a successful life. So therefore in my own opinion "Success in life" doesn't only have to center around money or financial status alone.
  When the goal is to become a millionaire, in building a career, starting in business or entering a profession, then success will depend on how much money is earned, but many people do not have that ambition to be immensely rich. Most people gain satisfaction from experiencing success when reaching career goals, by being innovative in business or from recognition of excellence in carrying out professional duties.