It definitely is a problem. And it is further compounded by the fact that they will have to continue to do as they're told once in office if they want to stay in office.

So what's the point of even voting? Why not just acknowledge that even they (the politicians) are just puppets and have no real power to carry out their promises? Why bother to even make promises? The only reason I can think of is that they just want the job for the prestige and the money. They certainly don't represent the voters.