Ad targeting identifies a lonely person with self esteem issues. Tells them that they'll be more popular and attractive if they consume product. They consume product and of course it doesn't actually help, but more advertisements are already lined up to explain that they're still feeling bad because they need to consume even more product. The ads show unrealistically happy and attractive people, to reinforce the self esteem issues and encourage the consumption of even more product.
This is a standard business practice for the advertising and marketing industry. It's evil.