As low ball estimate, let's estimate a lawyer costs $250 CAD/hr. Consider what happens if private lay person sues corporation with deep pocket is sued for a quantum less than or equal to a lawyer's fees. She is so angry about her product for whatever reason, and sues Apple or Samsung for $900, just as example, in Small Claims Court.
I won't assume anything on merits of lay person's case, because even investigating lay person's case can cost more $900. Apple or Samsung probably has to pay more $900 to hire a lawyer, in house or not, to represent them in Small Claims Court, like write defence, attend pre-trial settlement conference, and appear in trial.
Won't these corporations always try settle for $900, but with a NDA? If she accepts, they save lawyer's fees, public shaming, and no case record on CanLII. If corporations don't even offer this, they have to pay lawyers. Public can shame them, and they can lose more profit than $900! If they show up on CanLII, they look unimpressive and can create precedent for other lay persons to rely to sue them!