Personally I like the idea that people who might like to shake things up a bit join the public service. I am talking here about people who are not afraid to speak, who say what they think, who have opinions and who will question the status quo. I think everyone can benefit from that.
In fact, if you look at the history of the public service, you can see that in the 1960s and 1970s, the public service recruited a lot of people, who, in addition to having values and a sense of dedication, had new ideas and put a lot of energy into defending them.