Improve the grammaticallity of this:
Thirdly, some people are concerned about whether the Generational IV Nuclear Energy System will become a privilege of the wealth or technology developed countries and enlarge the gap between the developed countries and the developing countries.
Thirdly, some people are concerned about whether the Generational IV Nuclear Energy System will become a privilege of the wealthy or technologically developed countries and enlarge the gap between the developed countries and the developing countries.