Ideological Ranking of Occupations

Here is a new widely circulated image summarizing campaign contributions from different categories of people (click to enlarge):

Andrew Gelman has some problems with it though:

A simple dotplot (with occupations listed in order of their average “conservatism” of contributions, however this is measured) would be much better–at least for conveying the information. Better still might be a scatterplot of avg $ contributed vs. avg ideology.