Shadow Hack normally does 10 chapter per week, but the translator said that if he reaches place one in the power ranking he will do 14 chapter per week (which he does now).
There is no need to power vote a novel if they don't give bonus chapters and therefore using it for Shadow Hack has a good use.
Even if people don't like it and therefore don't vote for Shadow Hack,the lack of a reward doesn't give a motivation to vote and therefore novels with more readers can have less power votes.
Why are people not able to see that these two facts are the reason for the big power difference. >_>