There is an interesting school of thought in criminology: You fight crime from the bottom up. Concentrate on small-time criminals & petty offenders because this is the training ground for the big boys.
The big boys will eventually die off and there will be no one to replace them. And since they don't feel threatened, they will not react at all...for them it is business as usual.
Also, small crimes affect the largest number of people directly, so when you deal with them, the public generally begins to feel safe.
Perhaps this is the strategy PLO wants to use. But it must be done consistently over a long time until all the "small fish" are cowed to uprightness.
Nothing is real unless it can be named; nothing has value unless it can be sold; money is worthless unless you spend it.