Well, of course they want to win. Most people would rather be free than 'right'.
But juries aren't bad arbiters in the law. As you note, they don't have a judge's experience, education, etc., but that's the way our system is structured.
Parties in civil cases may (it depends on the type of case and the demographics of the area) choose juries because there can be a perception that they will award larger verdicts. And on the defense side in civil cases, they may want a jury if a plaintiff is particularly loathsome or seems to be overreaching/bilking the system. A civil plaintiff with an injury that looks fake or exaggerated can anger a jury and end up with nothing, particularly if that plaintiff acts entitled or obnoxious.
Is it just? Fair? Right? Probably not.