Let their be a strong system In such a way that scammers wont be able to penetrate in.
Ok, let's built now a system that nobody managed to build in the entire history of mankind!!!
And it will be impossible with this system to let scammers penetrate the environment, it will be like the Great Wall of China, ups wrong example....Maginot line...shit, Berlin's wall oh my god

.... Trump's wall...

Scams will always happen, there will always be scammers and there will always be people greedy enough or desperate enough to fall for a scam.
And to all saying that education will prevent scams, are you sure that everyone who got scammed by things like Bitcoinnect or Butterlylabs by Pirate040 or any other type of scam from Icos to Ponzi to mining gear were all illiterate imbeciles?