You look at it very much from the point of view of the buyer. But I think the big problem is the seller that is making a profit by stopping to use their sp to curate actual content. This is what drives the system into the dirt. (I made a more detailed post here)
Yes, when the large accounts vote everybody else is devalued in the math.
Were they not to vote, or delegate to be voted, all of our votes would be worth more.