According to Jesus, the GREATEST commandment is to love God with all our being, "and the second is like unto it, 'Thou shalt love thy neighbor as thyself.'" It is often noted that positive verson of "do not do to others what you would not want to experience" originates with the Judeo-Christian religions; it is kind of a big deal. Remember, Christ called it "like unto" the Greatest Commandment. Loving and demonstrating Gods creation AS His creation, especially our fellow men, is the chief practical means of loving and demonstrating their Creator.

It is impossible to love God and hate ones brother; I believe John said anyone who claims to do both is a liar, so mouthing prayers and attending services without service work is pointless. Anyone who thinks that the path to salvation is deluding themselves; self-delusion is an oddly self-destructive way to define self-improvement. Christianity definitely has significant individualist aspects, but it is more accurately called a PERSONAL than individualist faith. We are not to be indifferent to either the temporal or spiritual fates of others, else there would be no Great Commission: We simply have no power or right to DECIDE it; they must work out their own salvation with fear and trembling—or not—just as we must.

Christianity, incidentally, is apolitical, and not just because Christs kingdom is not of this carnal world (though that would be more than sufficient reason.) The first apostles sold all their goods, gave to the poor and held everything in common; not exactly laissez-faire capitalism. Christ on Earth was so anti-establishment the Jewish church and Roman state put aside the mortal antagonism that would destroy Jerusalem forty years later, and proceeded to execute Him despite knowing Him innocent of any crime, much less one deserving death. Note, that is not an attempt to say, "No, Jesus is a liberal, not a conservative." Jesus is neither; it is a bit like when Treebeard is asked whose side he is on and responds he is on no ones side because no one is on his.

Anyway, yes, the Torah forbids theft and the NT reaffirms that prohibition, but even the former (harsh as it often is by todays standards) does not decree DEATH for theft. Skipping church, nonmarital sex, sassing ones parents, sure, but not theft. If one takes the position life is SUPREMELY sacred, preventing theft is by definition an inferior cause (supremacy is inherently unique) insufficient for killing: The only acceptable cause is defending life, either by preventing or directly deterring its taking. Otherwise, life is not supremely sacred, and selectively calling it so only when justifying a given predetermined act is hypocritical falsehood.