I would avoid changing monetary policy...if an investor was told he would get a certain % a year ...you can't then just turn around and tell him "sorry we changed our mind you won't get anything". it's basically fraud and theft. then good luck finding another fool to invest in Steem again.
Holding Steem Power only pays around 1% a year....it's very reasonable considering there's a 10% inflation (most of which goes to Authors! 69%!!).
if you have a problem with the initial distribution of Steem, then you should ask those who ninja mined Steem (mostly Steemit Inc) to pay for the work proposal system, voluntarily. Instead you are basically proposing to rob every Steem Power holder of their 1% yearly interest, even those who actually paid for their Steem Power.