Re: Magic systems based on science?
Here's a thought: The super-tech is not in the people, but in the systems. For example, the weather control system has, as its main user interface component, a "mind reading technology." Now this system is programmed to prevent abuse, so it only recognizes certain people as being authorized to access it, and a specific set of commands (i.e. ceremony, or ritual) to add users to its authorization list. This allows the "Weather Wizards Cabal" to control who gets to toss lightning around, even if someone else learns (or thinks they have learned) the command words.
This same technology could be commonly used in other "magical" systems, as well.