That's true in more cases than not. Also, it's a lot cheaper and doesn't interfere with their pet pieces of the budget to pass another 'do nothing, cost nothing' law. Chesterton said 'Politics is not a sport, it is a business'. He also said, 'It is terrible to contemplate how few politicians are hanged'.
Another quote attributed to Mark Twain: 'Politicians and diapers must to changed often, and for the same reason'.