Answer:
There is a useful way to establish pros and cons for a certain subject
Explanation:
When faced with an exercise like this one, which I find very interesting, one should try to play devil's advocate around the main angles of the situation. The main question is the ethics regarding information.
On the one side, one could claim that there is a cognitive limit in each of us that is, by far, exceeded by the amount of information available in a segmented hyper-specialized society. Therefore, there is a grey area regarding the ethics of being held accountable for estimating the amount of information the targeted individual manages.
On the other side, one could oppose the first claim by stating the fact that the market operates on the basis of common trust. Therefore, speculating and profiting on the lack of awareness on the consumer's side is, not only unethical, but it is harmful to the system as a whole.