This is an example from history. Pathetic prose that were written by Adolf Hitler during his jail time were revised, rewritten, and edited and were finally published in 1925, well before the German Nazi party came to power through political maneuvering and elections in 1933. After World War II, there were many who remembered that Hitler had indeed declared the inevitability of the catastrophes and tragedies that came out of the Third Reich since the book was published.
While it took Hitler eight years after taking power to actually issue a government decree [Nacht und Nebel Erlass] that formally legalized Nazi organizations actions in dislocating Jews from their properties, the seed of murderous hatred was evident in the spoken word and actions of the Nazi party for as long as the party could be remembered. In contrast to the spoken words, the anti-semitic actions did not make the news in Germany as the state controlled the media and foreign media was banned after the war began in 1939. Hate speech and propaganda, for many Germans, remained only ideological rants that they would take a bit everyday with their daily bread.
Hitler did succeed in killing and dislocating of the jews and many other racial and social groups. He was also very successful in destroying most of Europe and millions of other lives which were not covered in the Nazi propaganda.
Not listening to their people seems to be normal for most politicians but why don't people listen to what their politicians so plainly say?