People should be educated the rhetorical mechanism they are using doesn't do what they think it does, though. It's part of developing critical thinking skills. It would help people not get taken advantage of, too.

In this case the problem is constructing poor models and using them to understand the world; it doesn't have to be used to intentionally mislead, people often can use analogies to explain things to themselves and get it wrong.

It's not without it's uses as a technique but you have to make sure the model the analogy constructs is, well, actually analogous to the situation you are modeling.