Most politicians might know nothing about Crypto currencies, but they have well informed advisors that are doing the ground work and research for them. A lot of the Banks also have financial advisors that are more than willing to give bad advise to these politicians and they are just one phone call or one secret meeting away.  

There will never be a shortage of people who wants to score some brownie points with these politicians, so there are an abundance of resources out there for them to use.