You're talking systemic change. A lawsuit doesn't need to cause systemic change to be worth it for the person who was wronged.
The justice system isn't always about correcting grand social inequities. Sometimes it's literally just conflict resolution and balancing things out. If I break my neighbor's fence, the judge isn't going to try to bankrupt me or have me give money as a punishment to keep me from breaking other fences. They're going to have me pay for fixing my neighbors fence because that's what's fair.
If your goal is to hurt the business, there are certainly better ways than the justice system. If your goal is for them to pay for the damage they did, the justice system is pretty much the only game in town.