The issue essay should be primarily about examples - actual things that have happened in the real world, and that you can use to support your position.
Sometimes you can only think of a hypothetical (Well, if an executive were to spend too much time criticizing employees, that would hurt the employees' morale) - just turn that into a real situation. Write about it as though it really happened to you or someone you know.
Have you read this article yet?
http://www.beatthegmat.com/mba/2009/12/ ... -no-thanks