If you open-sourced code and allowed it to be used for commercial purposes, I don't see the point of being pissy about Github using it, I'm saying this as someone who's written quite a lot of MIT code.
(And charging for a product which adds value to your developer experience and needs money to be run is not a bad thing)
(And charging for a product which adds value to your developer experience and needs money to be run is not a bad thing)