Meet the New Boss!

I have always appreciated The Who's 'Won't Get Fooled Again' track, in spite of its pessimistic takehome message. The song basically argues that political systems don't change, even when there is an apparent major upheaval. It also suggests that the people generally get whipped up, rebel and then find themselves back in the same old s**t. There is, however, one thing I don't understand about modern politics. That is the apparent attraction (in many countries) of candidates, who claim they are not really politicians. Most people wouldn't seek medical advice from someone who said he/she wasn't a doctor. I expect they would refuse treatment from a non-surgeon or non-dentist. You wouldn't get your car fixed by a non-mechanic. Even estate agents (realtors), who are not especially admired folk, get entrusted with house sales. People, however, seem to happily vote for 'non-politicians' (even though most are anything but). Voters even give them a free pass on actions and statements, that would normally make anyone unelectable. Many, in electorates, don't expect even a fleeting acquaintance with truthfulness. Why is it?