A just legal system may be imposed upon businesses, but the desire of each business is to transform that system into one where it receives maximum benefit for minimum expenditure.

Your example isn't desirable because it maximizes expenditure, not because it minimizes justice.

You are right, and wrong.

Your second paragraph is right.

Your first, depends. The tiny businessman will claim he wants fair courts, but the big business love the predictable and reliable courts, because they save time and money when making decisions with legal repercussions, and are great for those with money.

Brazil economy tanked recently in part BECAUSE courts suddenly become actually fair, sending several corrupted companies, and their thousands of (mostly innocent) employees to their doom, and making rich people wary of investing, because now they are unsure about their own future, and the corrupt ones fear for their future.