Depends on perspective and working praxis. If your coming from the goetic rituals for example that the powers your calling on are outside yourself. Then it is of limited or no benefit. But if you are working from the angle that you are the divine authority in the circle then you are calling upon your own powers to summon the spirits worked with. Of course this angle is working off the assumption that the practitioner has done enough work that they realize their their own power on a subconscious level so their subconscious isnt working against their active works. Also Intent matters.
This is one example of taking a system and making it your own. This is another with the kaballah. You could use a similar method to consecrate the tools of the goetic works to your own power.