By the way, FBI, NSA, DHS do not like very smart people. A friend of mine had amazing technology solutions and he could not pass through the gatekeepers. Now he is doing private business work. So semi-intelligent people in the government definitely will be afraid of these people with abilities.
Potential bosses hate the notion of hiring someone that might either overtake their position or take their position. It's purely an egocentric position.
I'm pretty sure any government placed job requires people to be schmoozer's, capable of buttering the toast of those that like to feel empowered by having hierarchy over them. Of course this sort of mentality leads to a lot of corruption through "empowerment". So you could imply the corrupt would worry about those with intelligence enough to weigh up their moral obligations that are supposed to be incorporated with their position.