Class action lawsuits are a boon for corpos. They take what should be many separate instances of fraud with unknown unknowns and tie them all off in one small garbage bag. Half the money goes to the attorneys and the other half is a token payment or even just funds a coupon to encourage doing more business with the perpetrator.
I'd really like to see some service that facilitates you opting out of a class action, and then comes in later representing you for your own individual case (at scale) based on the implicit admission of wrongdoing from the settlement plus documenting actual damages.