Are Christian leaders/pastors invested in the success of capitalism?
An honest answer must be yes and no.
First, the yes. Capitalism is devoted to the concept of self-interest. (See Alan Greenspan’s comments here.) And Christianity teaches that at heart, most people are all about self-interest. Thus capitalism works because it appeals to that which is most basic to humanity, self-interest, just like Christianity predicts.
However, that does not mean it is the preferred way of living. And here is the no. Christianity is all about change. The Christian leader/pastor hopes to be able to lead people into a changed life-style where acting in self-interest is no longer the dominant way of thinking, replaced instead with the values of Christ.
Christian leader/pastors start with the idea that appealing to the self-interest of others is the best way to reach people who do not share their commitment to Christian teaching. Disaster occurs when they allow their organizations to remain stuck there.