Gospel or self-improvement?

Jared Wilson reminds Christians that self-improvement is not the gospel:

It's just not the gospel message. It is not what Scripture teaches. It is self-centered, self-focused, self-concerned.

What will it take to radically revolutionize the pastoral and ecclesiological culture of evangelicalism toward the unadulterated, explicit gospel? I don't think the answer is pleasant.

Hmm.

Update: John Schroeder comments on Jared's post.