That's hardly putting you in a unique position. I code up tons of vector stuff. I even invented a new optimisation method based on sphere intersections! To say nothing of working with systems with hundreds of dimensions.
Coming up with 'fake physics' which looks, in a simulation, qualitatively similar to actual physics is easy, coming up with accurate simulations is hard. Take fire for instance. It's a bitch to truly, accurately simulate. Computer games use all kinds of cheats and slights of hand to generate effects which superficially look like fire but they don't actually correctly simulate it. Heat flow, gas dynamics, energy releases, they are all very very difficult to simulate simultaneously. So being able to program a believable visual effect of some phenomenon is not the same as simulating the phenomenon accurately.
Personally I'm amazed you've ever been employed. Rationality and any semblance of humility are completely alien to you. Do you tell friends and family you think you've topped all the physicists in the world? Do you set around the breakfast table and say "I'm better at physics than Hawking, Einstein and Newton!"?