Pointing out the type of argument doesn't negate that argument. While I don't think it's ok to simply commit fraud because I think the company is committing general fraud in most areas... If someone runs up and steals my phone but drops their own, I'll be keeping their phone until they make things right.

The same goes especially for multi-billion dollar corporations.

You cheat me out of something, I will first attempt to right that wrong through the proper channels. If I am unsuccessful, I will right that wrong through unofficial channels. Within reason, of course.