"He must have been misunderstood" why do we believe the lies of entrenched politicians?

They (I mean all the multiple year entrenched career super rich politicians) say what we want to hear and when the time for action comes around they do the exact opposite. Again and again and again. Accountability? There is no accountability for politicians who lie to us again and again. There is no accountability for politicians who say one thing and then do the opposite.
Why do we take it? Why do we blindly follow leaders who speak with forked tounges and tell us sweet lies? why?


http://www.counterpunch.org/lindorff07242007.html

Only a few days earlier the congressman, at a San Diego meeting on health care reform, had told members of Progressive Democrats of America that it was time to "take these two guys (Bush and Cheney) out" and had promised that if just "a few more" members of the House signed on to the Kucinich bill (it already has 14 co-sponsors), he would move it forward for consideration in his Judiciary Committee. Asked how that statement squared with what he had told the group of activists in his office, the spokesman said Conyers' "must have been misunderstood" in San Diego. He said that in view of Conyers' statement to Sheehan and the others today, the Kucinich bill was "not going to go anywhere."

do we. . .?