Whichever way you put it, money remains a heavy part of the equation. Not everybody can live off savings for a long time, be it an individual or a company.
But it's not everything! Set your goals independently from money if you want to achieve something big. You shouldn't work for money, but let money work for you... not just by leaving your money at the bank, but making it grow by investing it in your own project.
Bank interest rates may be mouth watering at times, but working on your own project you'll both collect more returns (if your company grows, your stake will grow faster than bank rates) and the satisfaction to create added value by yourself.