No, it's way worse than that. They not only control the garbage disposal business and regional administration, they physically stop you from keeping your street / neighbourhood / town clean...Guess how do I know.
It's their "service" or no service, with some extremely narrow exceptions, like a very small town named Aci Bonaccorsi, which fought that and now they're able to keep their streets on an amazing level of cleaniness compared to nearby municipalities.
Garbage disposal is the last remaining big business handled by the local mafia (drugs are handled by camorra nowadays) and they're absolutely doing anything to avoid losing that.