In 1827 Goethe was asked why professors and academics held to their opinions even when wrong. Sort of like our Fed and the climate change people. He answered:
"'This is not to be wondered at,' said Goethe; 'such people continue in error because they are indebted to it for their existence. They would have to learn everything over again, and that would be very inconvenient.'
"'But,' said I, 'how can their experiments prove the truth when the basis for their evaluation is false?'
"'They do not prove the truth,' said Goethe, 'nor is such the intention; the only point with these professors is to prove their own opinion. On this account, they conceal all experiments that would reveal the truth and show their doctrine untenable. Then the scholars -- what do they care for truth? They, like the rest, are perfectly satisfied if they can prate away empirically; that is the whole matter.'"