Eh, class action lawsuits are more about altering the large companies behavior in bulk because the individual harm to any plaintiff is rather small and nearly impossible to justify the expense and complexity of the suit. The plaintiff themselves would not profit off of it.

You're describing the 'private attorney general' theory/idea, which I'd believe if class-action lawyers were taking less remunerative cases that offered more public benefit.

https://en.wikipedia.org/wiki/Private_attorney_general