That's cleverly worded because you will need the profit to grow the business. Each and every business at the developmental stage should re-invest the profit to expand the business for productivity .I think that reinvestment is essential for any business that is growing and those that have already grown enough, reinvestment allows the business to continue growing exponentially and organically and makes it stronger and more resilient if done correctly, I think that it is simply of little use save it if its not to create, for example, an emergency fund for the business in cases of need