I had 12 votes, Not sure how that happened unless votes were added on my behalf. I suspect the limitation on votes is to create that environment where you have to think about what is more important for you, It then makes each vote more valuable when working out what to work on.
If everyone had tens of votes I think it would dilute the request pool a bit and make it harder to work out what people actually want.
Maybe @sirdavidoff has more information on the why.
Quick Edit… Just took a look and the vote count is based on trust level so the more active you are and the longer you are here for the more votes you get 