Fame
Air traffic controllers perform their duties behind the scenes. They don't have fancy pilot suits or hand out little wings to children. However, they are important people to thank every time your plane arrives safely.
Besides, even if you did get famous, it's highly likely that you won't want to be—ever hear about the guy who had his nine-year-old son give taxi directions at JFK? Yeah. Now he's driving a taxi to JFK. No JK.