A good article from 30 years ago on the true purpose of evangelism.
Salvation, as the Bible describes it, is the regeneration and sanctification of a sinner—not simply avoiding hell, but the change of the sinner from an unholy enemy of God to a holy friend—nay, not just a friend, but a son of God. Salvation from hell, you see, is merely a by-product. It must not be the main aim. The aim must be the making of God-glorifying, Christlike, regenerated, justified, sanctified, one-day-to-be glorified, holy disciples of the Lord Jesus Christ. And if you aren’t aiming for that, you aren’t doing evangelism!