What are the most evil media corporations in the world?

I want to throw GM in with the rest of these. Big ties with fossil fuel companies, lead poisoned a generation or two with gasoline, uncountable levels of microplastics from tire wear, not to mention all the societal issues caused by suburbanization and bulldozing neighbourhoods for highways and such. Many of these are indirect, many apply to other car companies, but GM always seems to be the worst offender of all, and doing it the most intentionally