If voting changed anything, they'd abolish it

Well they have, at least for Greece and Italy.

Ms Ashley sets out the scenario:

David Cameron and George Osborne have resigned. They did their best, but were unable to carry support, even in the Tory party, for the devastating attacks on pensions and living standards the markets demand. To prevent a British default, Reginald Pinstripe-Grey, formerly chief economist of Megabank in New York, is to be installed in the Lords as acting prime minister, leading a Government of Unity and Patriotism.
In London, representatives from the EU and German "advisers" will sit alongside the truncated cabinet. British MPs have been warned that any attempt to resist the extreme austerity measures by parliamentary vote will result in the final collapse of the British economy, and anarchy. No elections will be held in the meantime.

Impossible?  Absurd?  Not if you're Greek or Italian.  So is technocratic dictatorship an answer, even in the short term?

We'll see ...