Many here in the DR don't understand the concept of "free market" salaries whereby the market demand dictates the salary.
This is why politicians here can easily justify there salaries compared to American ones.
For example, a US Senator salary of US174,000 may seem high, but an engineer public works director of any medium to large city will make more:
Public Works Director Salary Survey
Furthermore, here in the DR professionals in other fields don't make near as much as their peers in the States. Another example is a chief engineer here in Santiago at the water treatment plant makes US15,000 while his counterpart in the States makes US90,000 or more for the same size city.
Also too is the cost of living, it is at least 40% of that of the US with comparable standard of living.
Factor that in as well and a justified salary of the politicians here should be no more than US25,000 at most a year, perks and all.