It also requires a good ability to persuade others who are not thinking rationally. Many such people respond to unreasonable confidence, emotional appeals, salesmanship, and other rhetorical tricks which may be more difficult to produce the more you are used to thinking things through rationally.

Really good point! In fact, there is a specific challenge in that the rationality community itself lashes back against rationalists using such tactics, as I experienced myself. So this is a particular challenging area of impacting the world.