So the basic premise is that "a modifier parameter for HP." actually DOES exist for the movers, shakers and grinders. It's the rewards pool, and if the minnows all did as you suggest and set aside a grand or so, their impact could likewise be enormously beneficial to authors whom they curate as well-regarded creators.
Or when they vote on proposals much like with witnesses, that mass of mighty minner's can move mountains, maybe.
You are right though, consistent work can be rewarding at the small end, and adds up to power in the people in bulk application.
Win win!
RE: Minnow Votes Matter! - Response to a question I received about witness voting power.