Any government official in their right mind would want to delay the implementation of blockchain technology as much as possible. Their careers' success are essentially based on deception: say what the masses want to hear and do what personally benefits' themselves and their backers. This would be much harder to do and they'd have to finally become men/women of their word.
As far as i know bitcoin is anonymous and we can't reach to that person who is sending the money. BY watching the address we will not able to see who's address is belongs to.
That is exactly correct but again Bitcoin is very fair and clear system and the crimes like money laundering and fake account technique could be halted by introducing the technology. But government has so many other ways as well to deal with the corruption. In China, more than 400 ministers have been jailed due to corruption in the past four years. This leads to the general perception that you cannot go away free if you are corrupt and this is the reason of their success.