How about because those whom are skilled and ethical view a lot of the work that the government would use them for to be unethical and against the principles up

How about because those whom are skilled and ethical view a lot of the work that the government would use them for to be unethical and against the principles upon which their country is founded? What if they feel that someone like Edward Snowden is a true patriot, for standing up and doing the correct thing in the most viable way offered to him? Or maybe, after a lifetime of experiencing government bureaucracy in schools, they've seen how broken things can get there, and can't even begin to imagine how bad things can be in the areas with insufficient light to burn away the worst offenders?