Just walk away from this. Focus your energies on getting another gig right now. Whatever happens at your earlier place of work is not your concern anymore. as long as you are happy and your conscience tells you that you put your heart to it, you are good. Sure, there is the feeling of hurt, and of being done in, but it's an opportunity as well.

Remember, the talent-less are political, by nature. Also remember, karma usually comes full circle.