I don't think they do.
The user is the person who consumes your product and gives you money for it. 'End users' are hostages. The real user is the ad-company. Once your product is feature complete, your ability to make money from the product doesn't scale with the technical quality of the product itself.
Facebook cares about making money. Period. Zuck's emails clearly show that his eyes are pointed at the exact point where some form of advertisements can be brought into the messenger platform. (indirectly through new feed in this case)
Youtube tried to sell people a subscription model, and most users do not want to pay the kind of money that youtube would lose by allowing them to avoid ads and low-quality content wormholes.
Netflix has an entirely different problem all together. It is a bunch of mega companies burning capital faster than it can be replenished, hoping to win the 'streaming' game. Unfortunately for Netflix, Disney practically has a warchest ready to go at all times.
Funny thing is, eventually a product comes along that provides the same value to the 'end user', without all the baggage of the 'money making' service. This is usually the point of exodus (digg/orkut/myspace) or acquire. (whatsapp)