You can win as long as you chose your battles. You can win more arguments then you might think as a writer, even though you legally have no recourse, and your script can get muddied and altered in any way possible. You can use reason, logic, and passion to argue persuasively for a case in your favor. So what I've learned is to just basically not buckle - not be belligerent, not be angry, not throw fits, but just not buckle.