Principles are ways of successfully dealing with reality to get what you want out of life.
Ray Dalio, one of the world’s most successful investors and entrepreneurs, cites principles as his key to success.
If you put your goals in the hands of RPs who can execute those goals well, and if you make it clear to them that they are personally responsible for achieving those goals and doing the tasks, they should produce excellent results.
The same goes for yourself. If your designer/manager-you doesn't have a good reason to be confident that your worker-you is up to a given task, it would be crazy to let yourself do the task without seeking the supervision of believable parties. You know that there are a lot of incompetent people in the world trying to do things they're not good at, so the chances are good that you are one of them. That's just a reality and it's okay for you to accept it and deal with it in a way that produces good outcomes.