Like it or not, I have little pity for anyone who earns more than the average - quite a number of other jobs in other places in the world are also labour intensive (such as farming tea) and they can earn salaries of less than $1 a day.
I don't think anyone is looking for pity, merely commenting that if £36000 is the salary offered, it is low by comparison to similar ATCO postings in the area, and given recent problems at Shoreham, it doesnt seem like a particularly secure job.
Also given the choice between tea farming and Shoreham I'd probably go for the Shoreham job. In all honestly I'm not really sure where your going with the comparisons.