There are many influential evangelical leaders who you've never heard about. You only hear about the ones who issue regular press releases, or stir controversy. Trust the fact that Southern Baptists know who Land is. Why don't you check and see how many Baptists are influenced by the man?
Do you realize that nearly every Sunday, pastors across the country give sermons that remind Christians about their position on abortion, partial birth abortion, assisted suicide, stem cell research. etc.? They are entitled to speak out on those issues, as they are part of their faith. It can even be political, reminding their members that they should vote for candidates who represent their values. They are not allowed to endorse candidates by name, but they know how to get the message across effectively.
That is true. I was just surprised that I never heard of him.