RE: On 50/50 for Steem, You'll never believe what the real problem is!!!
First off, thanks for reading all that. After writing it I looked at it and even I was intimidated.
Anyway, I agree with you on the fact that what you mentioned is a problem. I don't think the solution though is downplaying the earning aspect. I think it's identifying that there will more than likely always be two "classes" here.
The "working" class ie people who primarily earn through authoring posts, and the "investor" class, ie people that earn primarily through curation or delegation.
The secret sauce will be FIRST creating value through the applications here that is useful and valuable without the earning variable, THEN balance these two roles so that both can benefit. That's where the economic changes come in. There may be visual changes that can help with this also. One idea I heard recently was on post rewards for authors, only showing what you will actually get paid vs the author and curator payout that then will get cut once the week is over. Not sure if that would help, but it might.