you sound like someone who tried FB advertising and got burnt and yeah there are plenty of people like that. However if you know what you are doing it can be the best ROI on the web.
For example one of my ads I pay per click but my call to action does not require the user to actually click on the ad. Some people still do but most just pick up their phone and do what the ad asks them to do.
There you go LEo mull over that one!