I don't think in such black and white terms that I wouldn't consider a system where politicians do as they say they will to be an improvement on what we have now if that's what you mean. I do however think that imagining a society like ours except with honest politicians is a bit like imagining a society like ours except all the work is done by flying pigs. Elections will always be a choice between two or more steaming piles of bullshit, and without even a fair means to determine which steaming pile is the most popular. I could of course go all the way back to Thomas Hobbes and deconstruct all the arguments in favour of the willing abdication of one's moral and political will to a centralised authority, starting with how the whole idea is undermined by the fact that nobody actually voted for Leviathan in the first place so all consent is illusory, but to be honest it's getting late and I can't be arsed.