But this is clearly unrealistic.
- Human nature is that most people want what's in their own interests
- such people are typically better at getting into power
- those who are truly zealous about 'the common good' typically want to implement their own ideals which may not actually be very good
- those who go in with good intentions and who are 'in touch with the common man' naturally become detached from reality amd trapped within the system
Pratchett and Douglas Adams have some good quotes to paraphrase:
"Nobody who wants to be in power should be allowed to be"
"Someone who really believes in their Cause should be viewed as extremely dangerous"