If everybody sold their votes, Steem would be worth very little. Short term thinking from the individual perspective is what's bringing Steem down, it's not the best scenario, not even for vote sellers or buyers themselves.
If everybody would spend a great amount of time finding the greatest content and upvote it accordingly, Steem would be worth a LOT soon. If you don't have the time, then sponsor (trail following or SP delegating) a curation group that reflects your perspective on quality.
Here's the win.