Successful business owner are the wealthiest people in the world i really would say they are the custodians of wealth if you want to be a wealthy professional you most have to pass through becoming or placing value on your self.
You cannot reach success or become valuable if you do not offer something of value; we go to school and hone our skills because we want to be valuable in the eyes of the company we are serving.
We are living in a free market where people are constantly looking for something that will make them valuable, and the ones who give these values based on products and services are likely to succeed and become wealthy, so the first thing that you need to ask is not how much profit you will gain from your product or services but if this will give value or solve the customer's need; if it's something that will satisfy them, then you are on your way to making a lot of money.