The reason why ideological capitalism completely defeated ideological communism in the twentieth century was not because communists are evil but because capitalists accept that capitalists are evil. The only argument for capitalism is that it works. The reason why it works is because the vast majority of people are only greedy for that which benefits themselves. Greed is not evil but greed that hurts others is. In theory it is possible for humankind to embrace a Godly greed and, therefore, a Godly capitalism. Such a thing would be based on people being greedy for the other and in profit being pursued only so that it can be passed on to the other. There is a name for this idea - socialism.
Socialism is the using of human will to harness human greed for the benefit of the other.
Capitalism is the ignoring of human will and embracing greed for the benefit of the self.
The system is the same. The motivation is different.
Motivation can be Godly or evil.
Socialism is based on Godly motivation and is, therefore, a Christian ideal.
Capitalism is entirely evil in its motivation.
There can be no such thing as a Christian capitalist as the motivation for capitalism, the satisfying of self, is exactly that which Christ preached against. Though he did so, not so much by condemning selfishness, but by showing that our duty to others is so great that it leaves no opportunity for us to be selfish.