If you haven't tried approval testing yet, you definitely should. It makes unit testing a lot easier, particularly for legacy code or for verifying complicated objects.
If you are having trouble marketing your products and services, perhaps instead of focusing on what you sell, you may get better results by focusing on building a community of people with shared values.
At SAS Workshops we believe in "Small Steps and Fast Feedback". Having a Continuous Integration/Continuous Delivery (CI/CD) pipeline is a large part of that.