Is this an argument for tighter regulation of the internet? The only reason you can't get away with selling baking soda with arsenic is (quite rightly) because of food regulation.
Ideally the internet would not need regulation, if only people cared more about doing whats right...and not what makes your shareholders rich.
I think the unfortunate reality is whenever there's money involved, certain players will win over and time and become gigantic and by the very nature of their being at the top, they are unethical. Naturally, the less ethical and more ruthless money makers win in the market if all other things are considered equal to their competitors.