Even most bloggers on blogspot or wordpress wish to ultimately make money with what they do. Same for Youtube, DTube, whatever.
The thing is: With the upvoting system, people who write good, honest, interesting content will always be more successful than others. I further assume that people that just try to post spammy stuff (hoping to make big money) eventually will leave or change their attitude, because they don't succeed.
Therefore I think Steem has the potential of becoming THE high-quality bloggin platform in the internet!
This is only the beginning of decentralized social platforms :)