There's a difference between being treated specially and having complete immunity, and I think you're a bit naive if you think talent alone is enough to protect someone's job even in the medical field. And yes, one singular talented doctor who makes 5 new enemies every time he opens his mouth would absolutely be replaceable. Do some people get treated specially in their jobs? Sure, though it's usually because of who they're friends with or who they're related to rather than their talent. But to the degree that House gets away with? He takes it to a cartoonish degree that would lead to so many lawsuits Cuddy's head would spin. Do you know how much hospital deans care about the reputation of their hospital? And no, House's success rate wouldn't prevent his patients from pursuing legal battles or tanking the hospital's reputation. House's behaviour would make him an active liability which would cancel out any benefits to gain from his talent and he wouldn't be worth giving any special treatment. But that's beside the point, I personally couldn't stand his guts and disliked how he never suffered any real consequences for his actions and that's why I stopped watching.