I enjoy engaging with the other people here and reading the content. It is also a better move for me then upvoting my own content. I don't create what I want for just myself i hope that somebody can gain something from it. Therefore, internally I feel better when I get votes from other people and comments from others.
For those with more power comes responsibility and how they choose to use will make differences. In the end, it is there choice what they do with it.
RE: Which came first, the Engagement or the Reward?