Power
To some, a mathematician's skills with numbers can seem like magical powers, but there's nothing supernatural about what you do. The mathematician doesn't create laws of nature, he or she defines them. An applied mathematician would then take the defined math work and use it to solve a problem or advance technological progress. Therefore, your power as a mathematician comes not from the math itself, but how you use the math. And it is a mighty power indeed.
If you've decided to use your skills in robotics and artificial intelligence, then the solutions and equations you devise will be used in a variety of applications. Maybe your work gives airplanes the ability to see problems before they occur, saving hundreds of lives on board. Or perhaps it becomes the next great automobile innovation, allowing millions of people to get to work at the touch of a button. With mathematics, the possibilities for human advancement are seemingly endless.
On the other hand, you could use your power for nefarious, heinous, even diabolical reasons. You could sell your ideas or formulas to rogue groups or nations, looking to make a large chunk of black market change. Or you could build your own all-powerful attack drones. All you'd need is an eye patch and a cat and you'd be a regular supervillain. Of course, all that treason would likely draw the attention of the military.
