The important thing to keep in mind is that the State enables people like this.
Cartels exist solely on State privilege, they have to use the violence of the State to destroy competition and enforce the alliance among cartel members.
They can not exist in a real laissez-faire economy.
Check out the Laissez-Faire Journal at LFJournal.com
"The State is a gang of thieves writ large." - Murray Rothbard