I like where you are heading with staking.
I am okay with the system in place, the problem is, it is not manual curation.
I feel like certain people will always earn more, thanks to autovotes, and friends automatically upvote friends. True curating will never be a success if one small group of people always get from the reward pool and they are the one controlling the situation. In the same token some are truly writing great posts. Kudos to them.
Plus human nature favors to upvote people you know.

I read your post with attention.
Some aspects of your ideas look not clear to me. It could be the terminology you use.
I like the staking part very well.
It will attract investors.
When you mention investors it shows #hive should be looking for poeple with big pocket looking to earn without posting or doing anything else just for profit.
This is a broad view to attract those people without them thinking they need to be part of governance to profit.

If I get your point right, the reward pool should be dedicated for staking and RC, and SPS and anything where everyone is equal on earning. That would put #hive way on top.
On the other hand each HMT can concentrate on what is good for them.
Just thinking about #Dcity where you build your city and earn #steem-engine and #hive-engine token and weekly earn a piece of their reward pool.

I have to say I appreciate you bring that up and it will attract more people to #hive knowing writing or posting are not the main focus to earn or profit.
Hive-on!