Because Bitcoin is not a major concern for them. Just a minor concern, a niche used by smart people as inflation shield.
I do not agree with you. If you look at all BTC related charts you'll see a growing users base, growing exchanges, growing value, growing market cap, etc... It is no more a gadget for smart and geek people. It is slowly getting mainstream. Governments could soon see it as a serious problem and make the use of BTC really hard by banning exchanges, BTC ATM, ....