Actually, it is a motivating factor for some individuals who don't make a lot of money or who worry a lot about money, but success is more significant for those who have successfully created their businesses and make good money.
Those who have run their business and have been successful with many branches of business and continue to benefit through extraordinary marketing will certainly not be too difficult to think about money matters. Because money is only thought of by those who still don't have it, or those who are looking for it to save before opening a business that they have liked for a long time.
I have seen many small business owners too who are happy and running their business and earning good money.
The best thing is to do the research and then remain consist on what you have decided - hardwork is the key to success.