Are you not convinced that Google Search, DDG, Gmail, Facebook, WhatsApp, Snapchat are all "good" products in the eye of many people? As far as I can tell, all of those products are paid for by sponsors.
These platforms have been coasting on network effects alone for years. The "I'd quit but I have no other way to stay in touch with (friends/family/whoever)." / "but all my (whoever) are on it" justifications you constantly see from people are evidence to support that.
Are you not convinced that Google Search, DDG, Gmail, Facebook, WhatsApp, Snapchat are all "good" products in the eye of many people? As far as I can tell, all of those products are paid for by sponsors.