I'm not talking about bots that write content, just bots that vote for your posts. People can create tons of bots to vote for their posts, but right now it'd achieve nothing b/c the bots won't have any significant amount of Steem Power. But if everyone had equal voting power then that kind of abuse would be possible.
But also where does the money everyone is being paid come from? Right now, besides speculative investors, one of the only sources it comes from is people buying Steem Power b/c they want more voting power. And that would be gone w/ equal voting power for everyone.