There are PLENTY of self-proclaimed libertarian businessmen who can quote Atlas Shrugged who are libertarian only until markets turn against them. Then government suddenly has a central role to play and moral hazard goes out the window.
Works both ways. Self-proclaimed union and human rights leaders are only socialist until they've earned money. Then government tax collectors can go to hell and moral hazard goes out the window.
As for the fact no libertarian party has more than 5-10% of the total vote in any country - there's a reason for that.
Of course there's a reason, nobody wants to vote for a party that takes away free education, healthcare, housing, dole and welfare. If you believe voters know what they're doing consider Hitler, Mugabe and Chavez came to power this way.
It may be attractive as a political philosophy, but its not a fantastic blueprint for governing a society. Nor could it ever survive in a political system so beholden to special interests - which describes pretty much any political system in the world today.
Actually, it's the best blueprint for governing a society. There's a reason Hong Kong, Singapore, Australia, Switzerland and tax havens have the best living standards.