More likely, it's precisely because they do understand the benefits that they declare it illegal. Control over the money is control over the populace. Anywhere that has declared Bitcoin illegal clearly has no interest in freedom for its people. More marketing won't change that, sadly.
This.
The financial institutions will do everything in their power to prevent people from buying BTC. They make money by debt interest, transaction fees etc. They keep the population in check using a debt based financial system. Think about it, you go through school, go to college, then spend the rest of your life working and paying off debt. If you're lucky, you invent something that will change the world, and can retire at the age of 20 something. Then you are free, free to do what you want, free to travel the world, you're not shackled by a broken financial system that turns us into zombies. The banking overlords hate BTC, so they are doing everything in their power to lock it all up. You cannot kill an idea, you cannot kill something that is decentralized.