It is an interesting point, but may not be as simple as it seems.
account can't just upvote anyone for $8425. This is because of the macroeconomics of Steemit platform. If you upvote something with a huge Steem Power, then all other posts for the same period will not be paid according to their quality. Money are not taken from nowhere, if you give a lot of value to somebody, you take this value from others. Those who worked hard to create valuable content will not get the reward they deserve, and maybe give up posting and making value because of that...
Content curation is really a complicated task, barely done by any bots, mostly solvable only by human mind. So to make this platform more profitable and successful we need to upvote only quality content, this will be the most fair and profitable option for everyone.
Anyway, I agree with you, that Steemit creators might need to do more of curation work themselves. Currently the early Steemit adopters (old bloggers) take the largest part of daily profit, but to make this platform big, there should be more intention to reward quality content, even if the content is created by absolutely new users.
I personally think that only having equal chances for everyone will allow Steemit to become a multi-billion dollar project!
RE: TAPPING THE SLEEPING GIANT OF STEEMIT! WHO and WHY????? My first Argument...