Not true. Ever hear of Electro Motive Force or induction? His theory was based on induction. You can run things without wires you just need a lot of EMF to drive a motor or light a lamp. In todays world each of our homes would such a large coil that it would fill a basement.
Induction motors still have a complete path of current flow in the coil on the rotor.
However, it is still not "free". You simply CANNOT draw power out of something without putting it in somewhere else.