The Purpose of Freedom for Christians

I have heard many people accuse Christians of being as bad a socialists, the Church being a sort of proto-socialist organization. Most notorious in this regard (as being accusers) are followers of Ayn Rand. As brilliant as Rand was, I never understood her constant rants against religion and Christianity in particular. Another wing of critics stems from people like Mikhail Gorbachev, who is famous for saying: "Jesus was the first socialist, the first to seek a better life for mankind.". There is a huge difference between being an altruist and forcing people to be altruists. Christians try to do the former, socialists the latter. But this is a huge topic - to be discussed later.
For now let's focus on the issue of why Christians need freedom and liberty. For a Christian (I speak from my own, Catholic, perspective) doing good things is essential; it is a requirement of salvation in the afterlife. "Doing good" means helping others and following Christian dogma, such as the Ten Commandments and other Church laws. In order to do these things, however, one must have the free will to do them. If someone is forced to do a good thing (like giving a poor man a dollar, for example), then that person is not really responsible for doing the good deed as it was mandatory (i.e. the forced socialist way). By the same logic, if someone is forced to do an evil thing (to shoot someone, for instance), they are also not responsible for the killing. Therefore in a socialist society being a Christian has no value. If you pay your taxes and they are used to feed the poor and house the homeless, it is still not a good deed - because you were forced to pay the taxes in the first place. For a free man life is a test of his virtues and values; he can use all his faculties to the ends he thinks are best. For a slave, however, life is just a toil. A slave spends his days eeking out a subsistance and thinking of ways to get more material goods from his master.
A socialist society is a society of slaves.
A Christian society is a society of free men.

Let me end with a brilliant quote from Sir Francis Galton: "A really intelligent nation might be held together by far stronger forces than are derived from the purely gregarious instincts. A nation need not be a mob of slaves, clinging to one another through fear, and for the most part incapable of self-government, and begging to be led; but it might consist of vigorous self-reliant men, knit to one another by innumerable ties, into a strong, tense, and elastic organization."