Thank you so much for participating!
That is a significant amount of SP especially when STEEM and SBD become available everywhere. When that happens, the price will go up and your SP will be worth more. This is one of the reasons the effort to get STEEM and SBD on as many exchanges as possible is important.

Even if the amount was very small, the witnesses want more of those voters anyway. The reason is the vote is reversible. It is not like an election where the politician gets to hold the position for a number of years. Here, the individual can take the vote back at any time. For this reason, a witness prefers to have 10,000 minnow votes instead of 1 whale vote. A whale can change his/her mind and remove the vote. This will cause the witness to significantly lose rank. With 10,000 minnow votes, this wouldn't happen.

https://steemit.com/dlive/@lunaticpandora/8e04f9e0-677e-11e8-ba6c-0242ac110003