It is like teaching auto salesmen about the cars they sell. They generally do not know squat, but they have memorized a shpiel, and that is all most people who buy new cars need. People who buy used cars know more about fixing cars because they have experience at it.
Politicians care about getting votes and raising money. I get three separate pleas from money from Wendy Davis every day. We are on top, keep the money coming. Disaster looms unless you send us money. We will match every dollar you send. Blah blah blah. I hope she wins, but really, I do not live in Texas. There are millions of Texas who do.