Only indirect. Reputation is influenced by the upvotes and downvotes (flag) of your posts. You get more rewards from curation and self voting if you have more Steem Power. Steem that isn't powerd up have no influence. If you have a lot of Steem Power more people will interact with you because they are interested in getting your upvote. So you have the indirect affection of your reputation by more upvotes for your posts.