Getting a guilty verdict on an opponent is one of the ultimate finalities of "gaining points against an opponent". There's very little in arguing against a guilty verdict in a court of law, at least if your country has faith in its justice system.
However, it seems as if the Trump administration is desperately trying to undermine the validity of the justice system. They're not actually using the justice system to prove that justice is on their side. Of course, the Trumpkin and Putinista answer is that the entire justice system is just working in a grand conspiracy against Trump, however the reality is that justice just simply isn't on their side, period.