A world without politicians is not too smooth as now. Most of the countries are making progress with their hardworking politicians. No doubt, their image is not true due to corruption but somehow they are necessary for the world and the world without politician is mismanaged.
Could you give some examples of "hardworking politicians" that are actually making their country better. Maybe I'm naive, but it seems like they are definitely a minority. The worst thing is that politics is so often a show. A politician may "open" a new orphanage. The media will come and they'll have a great ceremony and celebrate the event. Everybody will be talking in the media about how great the leader is. In reality, though, he's just putting a band-aid on a huge problem and he didn't even do anything more than put his signature on a piece of paper to give taxpayers' money to the project. That's most countries' politics in a nutshell.