That would be the answer.  If people didn't have the skills or capabilities to defend themselves from private property drones I am sure the free market would think of solutions.  Some companies might do it just for salvage rights.  Personally I have no problem with limited governments in theory.  The problem is that technology should have made governments more limited over time.  There is less and less need for the government to solve all problems.  However over the past say 100 years we have seen the exact opposite.  In the US the government share of GDP has continually rose for the last 50 or so years and so has number of agents employed by the government and the government's ability to spy on its own citizens.