Your content marketing will attract customers seeking to solve the problems you are best at solving. When that happens, your sales efforts will be about determining if you can help, not convincing them of your talents.
The business world is full of rules. Some succeed by following them, others by breaking them. You have to find the right balance. If you break all the rules, you may frighten people. But if make your own rules, they may not even notice.
My grandmother raised four kids, and became a single parent when my grandfather passed on and my younger uncle was a tender 14. Learning to become profitable was not something she even thought about. She was "savvy" before savvy was a "business" household name.