I would believe that someone did/has. If you look at things like Project Maven at Google people did speak out, or the Chinese search engine. Speaking out doesn't help if you're not in a position to modify the plan though. I've been in both places, both where I could keep a bad idea from going through and times when I could only share my concerns.

For me, it was situations like this that gave me the motivation to get better at pitching (and shooting down) ideas. Using the tip fiasco as an example, you can argue it at the social justice level which will be ignored by the Chief Product Officer because they don't care about social justice, so for them you argue it at the product angle,

"This policy/product is going to stain our product and make us look like greedy chumps, look at how our competitors product idea to do <x> resulted in so much bad publicity they had to pay <y>, which totally negated any value to the company. Do you want to be the guy that costs this company that money? Are you ready to be out on the street looking for a job where your last idea turned out to be reviled by press? It will be you because the CEO certainly isn't going to take the blame for it, they are going to fire you and say 'See? We thought it was horrible too and we fired the person responsible.', and that is going to be you. Think about that before you move forward on this product idea, kthx bye."

That makes is personal to someone in a position to actually stop it from going out the door. If you can show them the risk in a way they will understand, then, and only then, do you get any traction in stopping it.