Do not blame them. Even if there is an election there are lot of voters who will vote for these politicians. Honest politicians wont get even elected to the parliament and because of that honest ones do not even contest most of the time.
Who paid light bills running in to 1 lacks- voters still appoints to the parliament by largest preferential votes.
All the thieves get appointed through people's votes . As long as people are fooled by such politics they will survive.