What if the court ruling was unjust? What if the other party bribed the judge? Happens all the time in third world countries, including to a friend of mine in a minor landlord-tenant dispute. Or the whole legal system isnt based on rule of law, but what the dictator says or which party pays the judges most money? Or the jury/judges take an irrational dislike of you because of differing political beliefs, or you being of a different︀ ethnic group?
Lee Kuan Yew observed in Singapore that Malays in a jury would tend︁ to be very lenient with other Malays and rule harshly against non-Malays, regardless of right︂ or wrong. So he abolished the jury trial system.
And since OP mentioned Sweden, we︃ have the case of Henrik Alexandersson that had his home abroad raided by police ,︄ and sentenced to 18 months prison, by politically appointed judges, just for very minor incorrect︅ accounting. If he wasnt an outpsoken libertarian and active in the pirate party, the legal︆ system probably wouldnt have bothered with him at all. And those politically appointed judges absolutely︇ hated the pirate party and Alexandersson's whole world view.
So just because there is a︈ court ruling, doesnt necessarily mean that the ruling is just or moral. Even in developed︉ countries with supposedly strong rule of law.