After talking to a few Jamaican friends about this, now I can certainly testify to the fact that getting a ride to work is difficult for some Jamaicans. Many of them rely heavily on taking taxis (two or three legs) from as far as Sav to Negril, or MoBay to Lucea.
In some cases, late at night, or early in the morning. Being late definitely impacts their job security.
I know some of the airport shuttle services have agreements (I am not sure of the exact nature of these agreements) to pick up workers from the big resorts on their normal runs. This helps to cut down on the demand for inexpensive rides to and from work along the major artery between Mobay and Negril. This is a great idea in my opinion and fills empty seats...
(I ask a lot of questions...and on one of my recent reaches I shared a ride with two young uniformed workers at a large hotel...two stops before Lucea, let them both out at same super AI in Lucea. This struck me funny as I was in a PRIVATE charter...so I asked the driver...he told me...said he hopes it is ok...I said no problem mon).
What we tourists tend to forget is that for us, $300J savings for a ride to the beach is nice. For some Jamaicans, especially someone just starting in the workforce...these rides are critical to being employed.
I'm not saying I won;t ever take a route taxi. If they pull up and are empty maybe I am helping them make a living. But I am definitely more aware of this issue now. And I still think they should standardize fares.
The only reason not to standardize fares is because some/many people overpay...that's using the same deductive reasoning as Rob used above. It's the only logical conclusion why there are not meters in Jamaican cabs.