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Ok, lets be completely fair.

Under a total libertarian system, you will get groups of power (ie: companies, religious groups, etc) which serve to restrict the freedoms of others for their own desires. This causes a net loss in freedom over the current - and unfortunately low - status quo. There's no point in having a government at all if people will be crushed under the heel of a modern day feudal lord.

The logical course is to limit the rights of organizations in order to preserve the freedom of the individual.

In addition, some socialist measures have a net positive effect for all people involved, such as how social security and the the TVA projects did wonders for the ailing economy and more than paid off their costs. I would have cited the panama canal's greater ease of trade, but that could have reasonably been done by a company.

... and if you don't maintain your house, it will eventually collapse. Keeping things in check is required in all things, and government programs are certainly no exception.

By the by, it's hard to have more and more people taking out and fewer and fewer people paying in without having a negative population growth, which has far more severe consequences than social security itself could ever cause.

Again, the balance must be maintained; running a government isn't a job for people who don't want to put forth the effort required to keep things running smoothly and efficiently.