Even if we're here just for the rewards, we can't get rewards if we post crap. People see that and stay away from the crap and whoever posts it. Few if any of us are here out of charity or altruism.
As for being here because of the price of HIVE or HBD (not to mention the Layer 2 tokens such as POB), I don't even think about the price. I'm lucky if I get upvotes, and that's good enough for me. The prices take care of themselves.
True. Rewards will never come without quality content.