"There a few cases where that's not socially desirable"
There are tons of examples where that's not socially desirable. Piracy is one easy example -- people don't want to pay for stuff, and will love a product to death if it enables piracy.
Said another way: what consumers like is orthogonal to what makes society better.
>people don't want to pay for stuff, and will love a product to death if it enables piracy.
That's blatantly false at worst and misleading at best. People will love a product to death if it allows them to consume media on fair terms in an easy way.
Netflix reduced movie piracy and iTunes reduced music piracy. Because they're not priced in an insulting way, and because they're friction-free to use.
You can argue that they're not always the same thing, but they're certainly not orthogonal. Consumers are a huge and extremely important part of society and the idea that the fulfillment of their preferences is completely unrelated to society's wellbeing is just silly.
There are tons of examples where that's not socially desirable. Piracy is one easy example -- people don't want to pay for stuff, and will love a product to death if it enables piracy.
Said another way: what consumers like is orthogonal to what makes society better.