Oh dear Mesha!
You are talking ordinary cars! I am talking about cars for the desert. They have no road licence and would not be qualified to get one! Insurance - what's that?? "Hand down cars" can be had for around 100JD in these conditions! Repairs are done "at home" - most of the Bedouin can change a carburetor when required to do so. Petrol is brought in mostly from Saudi Arabia which is sold at a ridiculously low price, very few people in Rum buy "Jordanian petrol". You may have noticed that there is no filling station there - have you never found that strange for all the vehicles around?
The entrance fee goes to the Bedouin Cooperative? Yes - when "expenses" are taken out, that is the expenses of "administering" the "Protected Area". In other words they get what is left over after all the Visitors' Centre expenses are paid, including the Rangers, their cars, and the "hides" in the desert. When one knows the salaries that are paid to the top guys, one is not surprised that the money received by the Cooperative Society is very little. In fact, the expenses are highly subsidised by ASEZA otherwise it would be nothing at all.
The majority of all these visitors to Rum come in groups and take a car at 20/25JD for 8 people for a two hour drive around. That's not very much to pay. And yes, quite possibly the older men might make 70JD a week, and during the high season that might well go higher. I agree that it is not the average earnings, nevertheless it is what some people make! Like any village, even Wadi Mousa (!) some people make more money than others, and it is usually the poorer and less well educated who are at the bottom of the pile.
The traditional money earner for the Bedouin all over Jordan was a stint in the Army or the Police. This is no longer the case in Rum, and very few of the under thirties are or have been in the Army. Certainly they get subsidies, that village people like those in Wadi Mousa, consider unfair.
USAid has supplied a good deal of the money for the running of Wadi Rum. But it hasn't come through as direct payments to the people there; it is all taken up by "administration" unlike the situation, for instance, in Madaba.
450 camels divided by 3 comes to 150. There are many more than 150 Bedouin (men) in Wadi Rum! I think this makes my point adequately. The number is going down with the huge increase in the price of animal feed.
I agree the cheapest tour offered by Attayak Aouda is the camel trek - BUT this is without an overnight stay. Add in the overnight, which most people want, and you are at 60 or 65JD.
I don't believe you will find "guides" anywhere in the world who accept official salaries without the right to work elsewhere when business is slack. Most certainly the official guides in Jordan are all independent; they earn well when there is business, when there is no business they are in trouble! Ask any guide you know how he managed in 2001 and 2003!
And lastly, believe it or not, the Bedouin are very conscious of the environment and the ecological balance of their "country" and always have been. A couple of UNESCO surveys reported on this with surprise and approval, although I am sorry, I don't have any references to give you. Sure, rubbish used to be thrown out for the desert to absorb, and it does still happen among some of the people who camp a long way out. It happens for that matter among a lot of Bedouin, not just in Wadi Rum. The newer guides are very much aware of this problem. But even the older people have always been careful about taking green wood for fires and not destroying vegetation wilfully. This is left for present day visitors who come to have fun on the dunes!
And I am afraid that I had to laugh at your summary of Bedouin culture! I don't disagree in principle, mind you, but literature? And hunting is one of the things that the authorities are trying to stop - without all that much success, mind you!