Man Who Tangled With The Oatmeal Ordered To Pay $46k
Last summer we followed the odd case of lawyer Charles Carreon, as he went after Matthew Inman, creator of The Oatmeal webcomic, with legal threats. Carreon had been hired by FunnyJunk, a website Inman accused of stealing his comics. Carreon demanded $20,000 in compensation for Inman's "false accusations." Inman declined, and then used the publicity to solicit over $200,000 in donations, which he gave to charity after sending Carreon photographs. Carreon dropped the suit against Inman, but the saga continued. A satirical website was set up about Carreon, which caused him to invoke the legal system again. The article documents the absurdities, which included further legal action and a song. Now, however, Carreon is reaping what he has sown; a judge has ordered him to pay over $46,000 for his role in the legal circus.
Only once it demonstrates the ability to carry out justice systematically, rather than just isolated accidents of sensibility.
The reason they have to do follow the law without imposing their arbitrary whims on the people that come before them, is that the law is BY DESIGN written by people who have to stand for reelection after they pass the laws (yes, there's the issue of whether our representatives actually represent us, and whether outside factors such as big money unduly influence elections, but it's not particularly relevant to the principle that's being questioned here).
The idea of laws applying equally to everyone is a HUGE DEAL. It's the practical application of the whole "all men are created equal" thing.
Judges following their own notion of "just," and disregarding the law in cases where they felt it was unjust, would cause a lot of decisions that you would certainly find horrendous. As it is, judges face very little accountability. The supreme court justices are appointed "in good behavior," which is usually interpreted as "lifetime appointment, with the option to impeach them if they start acting completely horrible." So there's a very good reason why their job descriptions leave very little wiggle room to do whatever they feel like. Yes, the supreme court frequently makes decisions that I find appalling, but at least they have to back it up based on law and precedent. In the system you're yearning for, they wouldn't even have to do that, if they felt that "justice" (whatever they felt like that meant that day) demanded it.
Call them "Umpire" if you want, but under your proposed system, we'd have another title for them - monarch.
I can't believe I have to spell this out, since it's high-school-civics-level stuff