The distinction you fail to make is that corrupt does not equal conservative.
Liberalism is an utter failure because it is odds with fundamental human nature. It assumes we are something we are not, i.e., SELFLESS beings. We are simply not wired to be that way. The only time most act selflessly is when they can afford to. We fundamentally expect and DEMAND the we get return, personally, for our efforts. If I work harder, am smarter, took time and effort to become better educated, I have and expectation of doing much better than those who did not.
Time and time again we are reminded how "shared" things pale in comparison to "private" things. Nothing "shared" has ever really amounted to much. Just compare any public park in your city to a private one, a public bathroom to your own bathroom, a public playground to a private one.
And look at the results of the world's greatest socialist experiment on a national scale, the Soviet Union. It collapsed under it's own bureaucratic weight of state run, and totally failed institutions. And then there's is western Europe where there hasn't been an original commercial idea come to fruit in 30 years, where unemployment has never dropped below 10% (people are screaming in the US at 5.1%) and growth has been stagnant since the mid 1970's.
Classic liberalism as failed everywhere it has been tried. China, Russia, Vietnam, India, as all have achieved growth only when embracing conservative based supply side, capitalistic systems and removed the yoke of government regulation and control over business.