It doesn’t matter what you sell, if it’s not mutually profitable for you and your clients, you’re not running a sustainable business.
The better you understand and can articulate the value you create, the more successful your business will be.
People don’t buy products and services for the sake it. They buy it for the value they get out of it.
Make sure what you do is profitable for you and your clients.
If you can demonstrate it, you have a sound business.