It sounds to me that a purely libertarian, laissez-faire society may be very similar to the proverbial socialist workers paradise; pretty in principle, but unworkable in practice. In free societies, the bad guys are free to politic too. You may take some comfort in knowing that Marx anticipated this as well. The answer is in the dialectic, the give and take of thesis and antisynthesis: synthesis. We are not looking for a destination, but a process. I would suggest you read Marx (the Grundisse is a good place to start), but I'm afraid you might take it too seriously and flip 180 on us. Nothing is more obnoxious than a born-again Marxist.

There has been historical progress, and it will continue. But the process will never stop and there will be setbacks. It has to be that way because times change and no theoretical construct is flexible enough to adjust to reality. Marx would have been just as astonished at the successes of Capitalism after his time as the robber barons would have been flabbergasted at the fact that they were all accomplished without their hard-ass tough love supervision.

Remember Heinlein's remarks on politics, a dirty and frustrating job that never quite works out the way it is supposed to, but still, the most important job there is.