instead sabotage their competitor, or burn their factory, or poison their crops.
In a "no rules" free market, how to we handle the psychotic evil geniuses who care only to manipulate markets for gain, not to be "honorable"

Property laws.
The real use as to why laws were designed..

If these are used properly - all the problems are dealt with ....and with crony capitalism these laws are used to compound criminal behavior..