Lobbying by pilots might redirect some money to upgrade someone's favorite small airport but their influence pales in comparison to long standing national security doctrine. Pilots and airports are part of our emergency infrastructure, the kind you don't think you need until the worst happens like a natural disaster. The FAA, FEMA, and the DoD take that kind of preparedness very seriously so they pretty much refuse to come down on private aviation as long as there's not enough PPLs for their liking.