Which is his loss, because it's a great book. I really enjoyed Heinlein's exploration of what is needed to sustain a healthy democratic form of government.
The company made famous by designing and manufacturing the Nazi uniforms currently has over a thousand stores, including hundreds in the US, and earns billions in annual revenue.
It's been years since I've read it but iirc the difference between the book and movie is that in the book voting is limited to those who have done some form of public service- not necessarily military, and it's specified that regardless of your aptitudes, disabilities, etc. the government will find at least SOMETHING for you to do regardless of how hopeless your case is. Perhaps the point OP is trying to make is that that form of democracy is healthy in the sense that the only people leading it are those that, at the minimum, showed an interest in contributing to it.