Taking the example of healthcare, a person may not have time to sue over an adverse decision. If the recourse is “you can sue the insurance company, but it’s going to take so long you’ll probably die while you’re waiting on that”, that’s not recourse.
Right, this is the bedrock upon which injunctive relief is made available; viz., when money after the fact would not cancel out the damages caused by a party doing the wrong thing. Unfortunately you can't get that relief without having an expensive lawyer, generally, so it doesn't end up being terribly equitable for low income folks.