We have to make it very easy for the general public to understand what's going on at an incredibly simple, "oh I get it" gut level.
Simple words communicated simply will go a long ways to showing the importance of keeping good security practices in place in our tech.
Where can I sign up for that Congress? Is that opt-in? Because that sounds great.
[1] http://www.gallup.com/poll/182816/little-change-percentage-a...
Not saying it's easy, but when it comes to election day, that politician truly does hinge on the majority of people filling in the bubble by one name. If you can make that not happen a real threat in the candidate's mind, they'll listen to your desires.
Not everyone will agree with you, even if you use itty bitty words they can understand. I understand the issue, even when explained in grown up words. And I don't agree.
In this case, Apple already was not "keeping good security practices in place" because they made a weak system. If they had actually made a phone that kept good security practices in place, it wouldn't be possible for them to help the FBI.
They should comply with this and then fix their crap. Then you can worry about explaining the importance of fighting any law that would undermine strong security.
The FBI has been running their own propaganda campaign, but when James Comey talks about the supposed "need" for backdoors, the common response by the people that understand crypto is to talk about how stupid Comey's suggestion was, sometimes with suggestions that he must not understand how crypto works. Meanwhile, the intended audience doesn't hear how backdoors aren't possible, and now have to unlearn the lesson that is "bad".
edit:
A suggestion on how to educate people about encryption: remember why[1] Philip Zimmermann wrote pgp - to provide an envelope for network communication.
[1] https://www.philzimmermann.com/EN/essays/WhyIWrotePGP.html
Think about something like climate change or vaccinations. You probably have no actual idea how it all works. But with some explanations you can understand the gist of the technical sides of those issues.
The main disconnect between the tech crowd and the general public isn't technical knowledge but values. A lot of people in the tech community put a lot value on absolute privacy or secrecy. The general public doesn't. Especially in a case where the privacy or secret information is to a 100% certainty related to an actual mass murdering terrorist.
I'd bet if anything, the general public would overestimate the privacy risk the apple crack would cause. They don't know about signed updates, for example.