It's easy to blame lawmakers and their arrogance for this, but in a free land government is a two-way street. Yes, lawmakers alienate voters when they refuse to pass ethics reforms. But the Utahns who consistently tell newspaper pollsters that they wish lawmakers would do so could apply enough pressure to get their way if they would get involved.
Elected officials become less concerned about abuses when they feel no one is paying attention. Voters, meanwhile, seldom know about things to which they would object until too late. Then they complain about feelings of powerlessness.