Very good question! The more Steem Power someone has, the more this person can leverage the total amount of Steem in the pool to reward YOU or themselves for this matter, for the work or interactions you have with this person. Thus, if a lot of people without much Steem Power vote for you, you might seemingly have nothing at all, only fractions of a Steem Dollar. Yet, if a person with lots of Steem Power votes for you at a high percentage of their power, you may end up with over $13.00 for one vote! I hope this helps you understand some more the intricacies of our platform?!.

Namaste :)