Unpopular opinion: No, it shouldn’t. That would be unethical. Aggregating cohorts of data to determine what you might or might not like to buy, and vigorously safeguarding that data since you know it will cost your business billions in market cap if it is exposed is far more reasonable. Yours is just a passive aggressive way to “ruin Facebook”.
If you want to ruin Facebook, push for legislation. Do it the right way.