Logarithmic scales are such a common and useful tool, it's a hard pill to swallow that the general populace doesn't have the knowledge or interest to understand them. I'm not talking from an elite academic point of view; if you make it through sophomore year of high school, you have at least been exposed to them, and if you graduate highschool you've been tested on their use.

I use them regularly (nearly every time I plot data to figure out trends or whatever), and have a hard time imagining not having them for problem solving.