They make themselves look silly/incompetent/time wasters in front of the judge. Even if you are not a lawyer, you probably realize you should not piss off a judge.
Really? Why? Do judges talk to each other about what companies are time-wasters and base their judgments on related smalltalk? If not (and I assume the answer is no, despite my relative lack of legal knowledge), then what has Samsung or any other company to lose besides a few dollars?