Conservative Christianity is prepared to defend and justify the most iniquitous social system on the ground that original sin has made human nature essentially bad, and that social justice is therefore unattainable. Such an argument against social reform is both hypocritical and sociologically false. In the first place, Christianity teaches not only about original sin but also about seeking the Kingdom of God and striving for perfection similar to the perfection of the Heavenly Father. It does not follow that because human nature is sinful we must talk of nothing else and give up all attempts to realize social justice. The bourgeois capitalistic system certainly is the result of original sin and its projection on the social plane but this is not a reason for justifying it and declaring it to be unchangeable.
Nikolai Berdyaev, The Destiny of Man, p. 221