According to Rabbi Amonon Bazak who heads the Har Etzion yeshiva in Alon Shvut, speaking about the recent electoral fraud by Haredim in Beit Shemesh, Israel:
Hareidi politics have led to a form of communal dependence on elections results… Then the ends justify the means… As a community activist put it, ‘Fraud is allowed for the sake of Torah.”
I would add that Haredim crow about their large population increase while ignoring their failure to educate their children for livelihood or motivate them to participate in the workforce to the fullest extent possible. This puts them in a position where their best strategy for economic survival requires converting their numbers into votes and then converting their votes into welfare state advantages, both straightforwardly and through corruption. In effect, the system has locked itself into corrupt politics as a survival mechanism.
This is also true in the U.S. where virtually the only significant reported voter fraud was perpetrated by Satmar in the fall 2013 New York primary elections.