If you're humble, you'll naturally want to keep growing. The guys that own the biggest companies are usually the most humble. It's no coincidence as to why richard branson owns cept what ist at of four billion companies. You don't let your ego get in the way of putting others first and consistently put their egos aside.
Humility is huge. Not just for living a good life. For running a successful business, too. According to Andy Frisella, humble leaders inspire employees and customers, and humble businesses improve and dominate.