It's not like the judge just wakes up one day and decides "Hey, I'm going to fuck this up for everyone". There's a case for the judge to hear, and actions based on rulings. Higher courts can decide if they stand up to scrutiny (and there are often ways for effects to be stayed pending the rulings of these higher courts - see for instance Elizabeth Holmes staying out of prison again today).

Personally I think it's great that judges can make rulings that affect the operations of large multinational companies and services - remove that and we're even more in thrall to big money, with even less scope for legal remedy.

Now when law is applied flippantly, corruptly, poorly, with bias etc and the country does nothing to fix it, that's on the country to fix itself and run better, not by removing the power for the 'little guy' to have any influence at all.